CN203817593U - Safe and energy-saving electric welding machine control circuit system - Google Patents
Safe and energy-saving electric welding machine control circuit system Download PDFInfo
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- CN203817593U CN203817593U CN201420242664.4U CN201420242664U CN203817593U CN 203817593 U CN203817593 U CN 203817593U CN 201420242664 U CN201420242664 U CN 201420242664U CN 203817593 U CN203817593 U CN 203817593U
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- 238000003466 welding Methods 0.000 title claims abstract description 66
- 239000003990 capacitor Substances 0.000 claims abstract description 37
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model discloses a safe and energy-saving electric welding machine control circuit system which comprises a power supply switch QS, an alternating-current contactor KM, a welding transformer T and a relay KA. The alternating-current contactor KM and a normally-closed contact KA1 of the relay KA are connected in series and then are connected in parallel to the two ends of a primary coil of the welding transformer T. A normally-open contact KM2 of the alternating-current contactor KM is connected with the input end of the primary coil of the welding transformer T. The two ends of the normally-open contact KM2 of the alternating-current contactor KM are connected in parallel to a capacitor C1. A resistor R1, a resistor R2, a resistor R3, a rectifier diode VD, a voltage-stabilizing diode VS1, a voltage-stabilizing diode VS2, a unijunction transistor VT, a capacitor C2 and a capacitor C3 are further included. According to the safe and energy-saving electric welding machine control circuit system, electric welding machine no-load current can be greatly reduced, accordingly, the purposes of energy loss lowering and energy saving are achieved, and meanwhile the safety of electric welding operation can be improved.
Description
Technical field
The utility model relates to control circuit of electric welding machine field, specifically a kind of control circuit of electric welding machine system of energy-saving safe.
Background technology
Electric welding machine is that the high-temperature electric arc that utilizes positive and negative polarities to produce when instantaneous short circuit carrys out scolder and the materials to be welded on consumable electrode, reaches the object that makes their combinations.The structure of electric welding machine is not very complicated, is the equal of just a powerful transformer in fact, 220V alternating voltage is become to the power supply of low-voltage, large electric current, can be direct current, can exchange yet.Current control circuit of electric welding machine has just merely been realized the object of moment step-down, and electric welding machine electric current in unloaded is relatively large, causes energy consumption higher, and voltage is also relatively high in addition, and electric shock accidents likely occurs, and to operation, brings certain potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of control circuit of electric welding machine system of energy-saving safe, solves current control circuit of electric welding machine energy consumption higher, and in operating process, has the problem of certain potential safety hazard.
The utility model for achieving the above object, realize by the following technical solutions: a kind of control circuit of electric welding machine system of energy-saving safe, comprise power switch QS, A.C. contactor KM, welding transformer T and relay K A, power switch QS is arranged on the primary coil of welding transformer T, described A.C. contactor KM is with a normally-closed contact KM1 and a normally opened contact KM2, relay K A is with a normally-closed contact KA1 and a normally opened contact KA2, described A.C. contactor KM is connected in parallel on the primary coil two ends of welding transformer T after connecting with the normally-closed contact KA1 of relay K A, the normally opened contact KM2 of A.C. contactor KM is connected to the primary coil input of welding transformer T, and the two ends of the normally opened contact KM2 of A.C. contactor KM are parallel with capacitor C 1, described relay K A is connected with the secondary coil of welding transformer T,
Also comprise resistance R 1, resistance R 2, resistance R 3, commutation diode VD, Zener diode VS1, Zener diode VS2, unijunction transistor VT, capacitor C 2 and capacitor C 3; The anodic bonding of one end of the secondary coil of welding transformer T and commutation diode VD, the anodic bonding of the other end and Zener diode VS2; One end of described capacitor C 2 is connected with the negative electrode of commutation diode VD, the anodic bonding of the other end and Zener diode VS2; One end of described resistance R 1 is connected with the negative electrode of commutation diode VD, and the other end is connected with the negative electrode of Zener diode VS1; The anode of described Zener diode VS1 is connected with the negative electrode of Zener diode VS2; One end of described resistance R 2 is connected with the negative electrode of Zener diode VS1, and the other end of resistance R 2 is connected with capacitor C 3, other one end of capacitor C 3 and the anodic bonding of Zener diode VS1; The emitter stage of described unijunction transistor VT is connected to the link of resistance R 2 and capacitor C 3, and two base stages of unijunction transistor VT are contact resistance R3 and relay K A respectively, and other one end of resistance R 3 is connected with the negative electrode of Zener diode VS1; One end of the normally opened contact KA2 of described relay K A is connected to the negative electrode of commutation diode VD, and the other end connects with the base stage that is connected relay K A on unijunction transistor VT; One end of the normally-closed contact KM1 of described A.C. contactor KM and the anodic bonding of Zener diode VS2, the other end is connected with relay K A.
Further, as preferred version, also comprise fuse FU, one end of described fuse FU is connected with power switch QS, and the other end is connected with A.C. contactor KM.
Further, as preferred version, the capacitance of described capacitor C 1 is 2 μ F, and the capacitance of capacitor C 2 is 22 μ F, and the capacitance of capacitor C 3 is 100 μ F.
Further, as preferred version, the resistance of described resistance R 1 is 2k Ω, and the resistance of resistance R 2 is 430k Ω, and the resistance of resistance R 3 is 200k Ω.
Further, as preferred version, the model that described commutation diode VD adopts is IN4007.
Further, as preferred version, the model that described Zener diode VS1 adopts is 2CW14, and the model that Zener diode VS2 adopts is 2CW21.
Further, as preferred version, the model that described unijunction transistor VT adopts is BT33.Unijunction transistor is again base diode, it is a kind of semiconductor devices that only has a PN junction and two resistance contact electrodes, its substrate is the high resistant N-type silicon chip of strip, and two base stages are drawn by Ohmic contact respectively in two ends, in silicon chip intermediate fabrication Yi Ge P district as emitter stage.
Further, as preferred version, the model of described A.C. contactor KM is CJ12-63.A.C. contactor mainly contains four parts and forms: (1) electromagnetic system, comprises sucking coil, moving iron core and static iron core; (2) contact system, comprises that three groups of main contacts and one to two group are often opened, normally closed auxiliary contact, the interlock mutually that connects together of it and moving iron core; (3) arc-control device, the general larger A.C. contactor of capacity is all provided with arc-control device, so that rapid breaking arc avoids burning out main contact; (4) insulation crust and annex, various springs, transmission mechanism, short-circuited conducting sleeve, binding post etc.When coil electricity, static iron core produces electromagnetic attraction, will move iron core adhesive, and because contact system links with moving iron core, therefore moving iron core drives three movable contact springs to move simultaneously, the closing of contact, thus switch on power.When coil blackout, suction disappears, and moving iron core interlock part relies on the reaction force of spring and separation makes main contact disconnection, cuts off the electricity supply.
Further, as preferred version, the model of described relay K A is JRS-13F/12V.
The utility model compared with prior art, have the following advantages and beneficial effect: the utility model is by an A.C. contactor and a relay, realized to electric welding machine in working order with the switching controls of off working state, when electric welding machine does not carry out welding job, A.C. contactor discharges without electricity, and AC power is the elementary connection with welding transformer by capacitor C 1, and electric welder no-load electric current is reduced greatly, thereby reduced energy consumption, reached energy-conservation object; And electric welding machine is when weld, welding transformer is secondary by short circuit, and voltage is down to 0V left and right, even if operating personnel touch the conductor part of welding gun because of carelessness, is also unlikely to occur electric shock accidents, thereby has improved security.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of embodiment 1 of the present utility model;
Fig. 2 is the structural representation of embodiment 1 of the present utility model when welding;
Fig. 3 is the circuit structure diagram of embodiment 2 of the present utility model.
The specific embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
As shown in Figure 1, the control circuit of electric welding machine system of a kind of energy-saving safe described in the present embodiment, comprise power switch QS, A.C. contactor KM, welding transformer T and relay K A, power switch QS is arranged on the primary coil of welding transformer T, the secondary coil of welding transformer T connects respectively welding gun and welding body, as shown in Figure 2.A.C. contactor KM is with a normally-closed contact KM1 and a normally opened contact KM2, relay K A is with a normally-closed contact KA1 and a normally opened contact KA2, A.C. contactor KM is connected in parallel on the primary coil two ends of welding transformer T after connecting with the normally-closed contact KA1 of relay K A, the normally opened contact KM2 of A.C. contactor KM is connected to the primary coil input of welding transformer T, and the two ends of the normally opened contact KM2 of A.C. contactor KM are parallel with capacitor C 1, relay K A is connected with the secondary coil of welding transformer T.
The present embodiment also comprises resistance R 1, resistance R 2, resistance R 3, commutation diode VD, Zener diode VS1, Zener diode VS2, unijunction transistor VT, capacitor C 2 and capacitor C 3; The anodic bonding of one end of the secondary coil of welding transformer T and commutation diode VD, the anodic bonding of the other end and Zener diode VS2; One end of capacitor C 2 is connected with the negative electrode of commutation diode VD, the anodic bonding of the other end and Zener diode VS2; One end of resistance R 1 is connected with the negative electrode of commutation diode VD, and the other end is connected with the negative electrode of Zener diode VS1; The anode of Zener diode VS1 is connected with the negative electrode of Zener diode VS2; One end of resistance R 2 is connected with the negative electrode of Zener diode VS1, and the other end of resistance R 2 is connected with capacitor C 3, other one end of capacitor C 3 and the anodic bonding of Zener diode VS1; The emitter stage of unijunction transistor VT is connected to the link of resistance R 2 and capacitor C 3, and two base stages of unijunction transistor VT are contact resistance R3 and relay K A respectively, and other one end of resistance R 3 is connected with the negative electrode of Zener diode VS1; One end of the normally opened contact KA2 of relay K A is connected to the negative electrode of commutation diode VD, and the other end connects with the base stage that is connected relay K A on unijunction transistor VT; One end of the normally-closed contact KM1 of A.C. contactor KM and the anodic bonding of Zener diode VS2, the other end is connected with relay K A.
The operation principle of the present embodiment: power turn-on switch QS, A.C. contactor KM obtains electric adhesive, its normally-closed contact KM1 disconnects, normally opened contact KM2 is closed, 380V alternating voltage is added in the primary coil of welding transformer T, secondary coil induces the alternating voltage of about 80V, this 80V alternating voltage punctures Zener diode VS1 and Zener diode VS2, at Zener diode VS1 two ends output 20V DC voltage, and make unijunction transistor VT conducting, capacitor C 3 is discharged and makes relay K A adhesive to relay K A, its normally-closed contact KA1 disconnects, normally opened contact KA2 is closed, now, loop, A.C. contactor KM place disconnects, its normally opened contact KM2 is disconnected, 380V alternating voltage is by capacitor C 1 and the elementary connection of electric welding machine, electric welder no-load electric current is reduced greatly, now electric welding machine secondary voltage is down to 11.5V left and right, this voltage is through commutation diode VD, after capacitor C 2 filtering, DC voltage is provided to relay K A, make relay K A keep attracting state, while welding, because welding gun contacts with welding body, cause welding transformer secondary coil by short circuit, voltage is down to about 0V, and relay K A dead electricity discharges, and its normally-closed contact KA1 is closed, A.C. contactor KM obtains electric adhesive, and electric welding machine enters next step normal welded condition.
Model or parameter that above-mentioned device is selected are as follows:
Capacitor C 1:2 μ F, capacitor C 2:22 μ F, capacitor C 3:100 μ F;
Resistance R 1:2k Ω, resistance R 2:430k Ω, resistance R 3:200k Ω;
Commutation diode VD:IN4007;
Zener diode VS1:2CW14, Zener diode VS2:2CW21;
Unijunction transistor VT:BT33;
A.C. contactor KM:CJ12-63;
Relay K A:JRS-13F/12V.
Embodiment 2:
As shown in Figure 3; the present embodiment is on the basis of embodiment 1; increased fuse FU; one end of fuse FU is connected with power switch QS; the other end is connected with A.C. contactor KM; fuse FU can play the effect of protection to whole control circuit of electric welding machine, avoid each device to burn, and also can improve in addition the security of whole circuit.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.
Claims (9)
1. the control circuit of electric welding machine system of an energy-saving safe, it is characterized in that: comprise power switch QS, A.C. contactor KM, welding transformer T and relay K A, power switch QS is arranged on the primary coil of welding transformer T, described A.C. contactor KM is with a normally-closed contact KM1 and a normally opened contact KM2, relay K A is with a normally-closed contact KA1 and a normally opened contact KA2, described A.C. contactor KM is connected in parallel on the primary coil two ends of welding transformer T after connecting with the normally-closed contact KA1 of relay K A, the normally opened contact KM2 of A.C. contactor KM is connected to the primary coil input of welding transformer T, and the two ends of the normally opened contact KM2 of A.C. contactor KM are parallel with capacitor C 1, described relay K A is connected with the secondary coil of welding transformer T,
Also comprise resistance R 1, resistance R 2, resistance R 3, commutation diode VD, Zener diode VS1, Zener diode VS2, unijunction transistor VT, capacitor C 2 and capacitor C 3; The anodic bonding of one end of the secondary coil of welding transformer T and commutation diode VD, the anodic bonding of the other end and Zener diode VS2; One end of described capacitor C 2 is connected with the negative electrode of commutation diode VD, the anodic bonding of the other end and Zener diode VS2; One end of described resistance R 1 is connected with the negative electrode of commutation diode VD, and the other end is connected with the negative electrode of Zener diode VS1; The anode of described Zener diode VS1 is connected with the negative electrode of Zener diode VS2; One end of described resistance R 2 is connected with the negative electrode of Zener diode VS1, and the other end of resistance R 2 is connected with capacitor C 3, other one end of capacitor C 3 and the anodic bonding of Zener diode VS1; The emitter stage of described unijunction transistor VT is connected to the link of resistance R 2 and capacitor C 3, and two base stages of unijunction transistor VT are contact resistance R3 and relay K A respectively, and other one end of resistance R 3 is connected with the negative electrode of Zener diode VS1; One end of the normally opened contact KA2 of described relay K A is connected to the negative electrode of commutation diode VD, and the other end connects with the base stage that is connected relay K A on unijunction transistor VT; One end of the normally-closed contact KM1 of described A.C. contactor KM and the anodic bonding of Zener diode VS2, the other end is connected with relay K A.
2. the control circuit of electric welding machine system of a kind of energy-saving safe according to claim 1, is characterized in that: also comprise fuse FU, one end of described fuse FU is connected with power switch QS, and the other end is connected with A.C. contactor KM.
3. the control circuit of electric welding machine system of a kind of energy-saving safe according to claim 1, is characterized in that: the capacitance of described capacitor C 1 is 2 μ F, and the capacitance of capacitor C 2 is 22 μ F, and the capacitance of capacitor C 3 is 100 μ F.
4. the control circuit of electric welding machine system of a kind of energy-saving safe according to claim 1, is characterized in that: the resistance of described resistance R 1 is 2k Ω, and the resistance of resistance R 2 is 430k Ω, and the resistance of resistance R 3 is 200k Ω.
5. the control circuit of electric welding machine system of a kind of energy-saving safe according to claim 1, is characterized in that: the model that described commutation diode VD adopts is IN4007.
6. the control circuit of electric welding machine system of a kind of energy-saving safe according to claim 1, is characterized in that: the model that described Zener diode VS1 adopts is 2CW14, and the model that Zener diode VS2 adopts is 2CW21.
7. the control circuit of electric welding machine system of a kind of energy-saving safe according to claim 1, is characterized in that: the model that described unijunction transistor VT adopts is BT33.
8. the control circuit of electric welding machine system of a kind of energy-saving safe according to claim 1, is characterized in that: the model of described A.C. contactor KM is CJ12-63.
9. the control circuit of electric welding machine system of a kind of energy-saving safe according to claim 1, is characterized in that: the model of described relay K A is JRS-13F/12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242664.4U CN203817593U (en) | 2014-05-13 | 2014-05-13 | Safe and energy-saving electric welding machine control circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242664.4U CN203817593U (en) | 2014-05-13 | 2014-05-13 | Safe and energy-saving electric welding machine control circuit system |
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| Publication Number | Publication Date |
|---|---|
| CN203817593U true CN203817593U (en) | 2014-09-10 |
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| CN201420242664.4U Expired - Lifetime CN203817593U (en) | 2014-05-13 | 2014-05-13 | Safe and energy-saving electric welding machine control circuit system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949753A (en) * | 2014-05-13 | 2014-07-30 | 国家电网公司 | Safe and energy-saving electric welding machine control circuit system |
| CN111142472A (en) * | 2020-01-17 | 2020-05-12 | 厦门洪海机械有限公司 | Control circuit and control method for rapid and stable heating of hot knife |
-
2014
- 2014-05-13 CN CN201420242664.4U patent/CN203817593U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949753A (en) * | 2014-05-13 | 2014-07-30 | 国家电网公司 | Safe and energy-saving electric welding machine control circuit system |
| CN111142472A (en) * | 2020-01-17 | 2020-05-12 | 厦门洪海机械有限公司 | Control circuit and control method for rapid and stable heating of hot knife |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
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| CX01 | Expiry of patent term |