CN103949753A - Safe and energy-saving electric welding machine control circuit system - Google Patents
Safe and energy-saving electric welding machine control circuit system Download PDFInfo
- Publication number
- CN103949753A CN103949753A CN201410199897.5A CN201410199897A CN103949753A CN 103949753 A CN103949753 A CN 103949753A CN 201410199897 A CN201410199897 A CN 201410199897A CN 103949753 A CN103949753 A CN 103949753A
- Authority
- CN
- China
- Prior art keywords
- resistance
- zener diode
- capacitor
- relay
- welding machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1043—Power supply characterised by the electric circuit
- B23K9/105—Power supply characterised by the electric circuit by using discharge tubes or mechanical contactors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The invention discloses a safe and energy-saving electric welding machine control circuit system. The system comprises a power switch QS, an alternating current contactor KM, a welding transformer T and a relay KA, wherein the alternating current contactor KM and the normally closed contact KA1 of the relay KA are connected in series and then are connected with two ends of a primary coil of the welding transformer T in parallel; the 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; capacitors C1 are connected with two ends of the normally open contact KM2 of the alternating current contactor KM in parallel; the system also comprises a resistor R1, a resistor R2, a resistor R3, a rectifying diode VD, a voltage stabilizing diode VS1, a voltage stabilizing diode VS2, a unijunction transistor VT, a capacitor C2 and a capacitor C3. By adopting the structure, the system can greatly reduce the no-load current of an electric welding machine, thereby reducing the energy consumption and achieving the purpose of energy conservation, and also can improve the safety of electric welding operation.
Description
Technical field
The present invention 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 in the time of 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 brings certain potential safety hazard to operation.
Summary of the invention
The object of the present invention is to provide a kind of control circuit of electric welding machine system of energy-saving safe, solve current control circuit of electric welding machine energy consumption higher, and in operating process, have the problem of certain potential safety hazard.
The present invention 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, two base stages of unijunction transistor VT 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 P district of silicon chip intermediate fabrication as emitter stage.
Further, as preferred version, the model of described A.C. contactor KM is CJ12-63.A.C. contactor mainly contains four part compositions: (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.In the time of 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.In the time of coil blackout, suction disappears, and moving iron core interlock part relies on the reaction force of spring and separates, and main contact is disconnected, and cuts off the electricity supply.
Further, as preferred version, the model of described relay K A is JRS-13F/12V.
The present invention compared with prior art, have the following advantages and beneficial effect: the present invention 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, in the time that 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 reduce energy consumption, reached energy-conservation object; And electric welding machine is while welding, 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.
Brief description of the drawings
Fig. 1 is the circuit structure diagram of embodiments of the invention 1;
Fig. 2 is the structural representations of embodiments of the invention 1 in the time of welding;
Fig. 3 is the circuit structure diagram of embodiments of the invention 2.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are 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, two base stages of unijunction transistor VT 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 closure, 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 closure, 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, its normally-closed contact KA1 closure, 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; increase 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 to whole control circuit of electric welding machine the effect of protection, avoids each device to burn, and also can improve in addition the security of whole circuit.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, and any simple modification, equivalent variations that every foundation technical spirit of the present invention is done above embodiment, within all falling into protection scope of the present invention.
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, two base stages of unijunction transistor VT 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 |
|---|---|---|---|
| CN201410199897.5A CN103949753A (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 |
|---|---|---|---|
| CN201410199897.5A CN103949753A (en) | 2014-05-13 | 2014-05-13 | Safe and energy-saving electric welding machine control circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103949753A true CN103949753A (en) | 2014-07-30 |
Family
ID=51327175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410199897.5A Pending CN103949753A (en) | 2014-05-13 | 2014-05-13 | Safe and energy-saving electric welding machine control circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103949753A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052528A (en) * | 2016-12-29 | 2017-08-18 | 国网浙江杭州市富阳区供电公司 | A kind of electric welding machine safety control |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4508954A (en) * | 1984-05-18 | 1985-04-02 | Oxo Welding Equipment Co., Inc. | Portable arc voltage wirefeed welding system |
| CN2930941Y (en) * | 2005-11-29 | 2007-08-08 | 陈凤财 | Electric welding machine with idling auto-power-off device |
| CN201079881Y (en) * | 2007-09-10 | 2008-07-02 | 山东金岭矿业股份有限公司 | Automatic power-saving equipment for AC electric welding machine |
| CN201283463Y (en) * | 2007-12-28 | 2009-08-05 | 郑志燕 | Intelligent energy-saving electricshock-proof electric welding machine |
| CN201862898U (en) * | 2010-11-09 | 2011-06-15 | 上海大屯能源股份有限公司 | Energy-saving safety controller of electric welding machine |
| CN102581439A (en) * | 2012-03-22 | 2012-07-18 | 扬帆集团股份有限公司 | Anti-electric shock energy-saving device for electric welding machine |
| CN202506939U (en) * | 2012-04-25 | 2012-10-31 | 中国化学工程第三建设有限公司 | Electric welder energy-saving device |
| CN203166478U (en) * | 2013-04-12 | 2013-08-28 | 成都瑞途电子有限公司 | Power saver for automatic powering-off under no-load operation of motor |
| CN203817593U (en) * | 2014-05-13 | 2014-09-10 | 国家电网公司 | Safe and energy-saving electric welding machine control circuit system |
| CN104057178A (en) * | 2013-03-18 | 2014-09-24 | 成都瑞途电子有限公司 | Power-saving controller for electric welding machine |
-
2014
- 2014-05-13 CN CN201410199897.5A patent/CN103949753A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4508954A (en) * | 1984-05-18 | 1985-04-02 | Oxo Welding Equipment Co., Inc. | Portable arc voltage wirefeed welding system |
| CN2930941Y (en) * | 2005-11-29 | 2007-08-08 | 陈凤财 | Electric welding machine with idling auto-power-off device |
| CN201079881Y (en) * | 2007-09-10 | 2008-07-02 | 山东金岭矿业股份有限公司 | Automatic power-saving equipment for AC electric welding machine |
| CN201283463Y (en) * | 2007-12-28 | 2009-08-05 | 郑志燕 | Intelligent energy-saving electricshock-proof electric welding machine |
| CN201862898U (en) * | 2010-11-09 | 2011-06-15 | 上海大屯能源股份有限公司 | Energy-saving safety controller of electric welding machine |
| CN102581439A (en) * | 2012-03-22 | 2012-07-18 | 扬帆集团股份有限公司 | Anti-electric shock energy-saving device for electric welding machine |
| CN202506939U (en) * | 2012-04-25 | 2012-10-31 | 中国化学工程第三建设有限公司 | Electric welder energy-saving device |
| CN104057178A (en) * | 2013-03-18 | 2014-09-24 | 成都瑞途电子有限公司 | Power-saving controller for electric welding machine |
| CN203166478U (en) * | 2013-04-12 | 2013-08-28 | 成都瑞途电子有限公司 | Power saver for automatic powering-off under no-load operation of motor |
| CN203817593U (en) * | 2014-05-13 | 2014-09-10 | 国家电网公司 | Safe and energy-saving electric welding machine control circuit system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052528A (en) * | 2016-12-29 | 2017-08-18 | 国网浙江杭州市富阳区供电公司 | A kind of electric welding machine safety control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105428118A (en) | Arc extinguishing device and non-arc switch | |
| CN103747592A (en) | Intelligent single live wire serial connection touch wireless remote control wall switch | |
| CN203817593U (en) | Safe and energy-saving electric welding machine control circuit system | |
| CN103269057B (en) | A kind of earth-fault protection | |
| CN103949753A (en) | Safe and energy-saving electric welding machine control circuit system | |
| CN208479171U (en) | A kind of threephase motor temperature control light current and forceful electric power isolation circuit | |
| CN102768919B (en) | Soft-start circuit | |
| CN201713204U (en) | Intelligent contact-less direct-current control power source of lifting electromagnet | |
| CN202633174U (en) | Soft starting circuit | |
| CN203968094U (en) | Energy-saving safe switch | |
| CN103594290A (en) | Control circuit for alternating current contactor | |
| CN203607335U (en) | AC contactor control circuit | |
| CN203747367U (en) | Alternating current circuit switching-on and switching-off device adopting bidirectional thyristor | |
| CN107204651A (en) | The energy-saving circuit and method of work, charger of rear power themselves down are full of in charger | |
| CN202473754U (en) | Soundless energy-saving power-loss discharging-delay device | |
| CN203631410U (en) | Vacuum circuit breaker controlling circuit and vacuum circuit breaker controlling system | |
| CN102651266B (en) | Control circuit of electromagnetic chuck | |
| CN202455576U (en) | Microwave oven | |
| CN105207456B (en) | Anti-interference capacitor zero-power release circuit on Switching Power Supply AC ends | |
| CN202679231U (en) | Soft starting circuit | |
| CN101770897A (en) | Control device of AC contactor | |
| CN204761141U (en) | Overload protection device double loop power supply automatic switch -over circuit | |
| CN203667737U (en) | Lift control circuit | |
| CN202949208U (en) | Voltage-loss protector | |
| CN103681094A (en) | Vacuum circuit breaker control circuit and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140730 |