CN104668731A - No-load power-saving circuit of electric welding machine - Google Patents
No-load power-saving circuit of electric welding machine Download PDFInfo
- Publication number
- CN104668731A CN104668731A CN201310637385.8A CN201310637385A CN104668731A CN 104668731 A CN104668731 A CN 104668731A CN 201310637385 A CN201310637385 A CN 201310637385A CN 104668731 A CN104668731 A CN 104668731A
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- Prior art keywords
- transformer
- contact switch
- contactor
- relay
- normally
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a no-load power-saving circuit of an electric welding machine. The no-load power-saving circuit of the electric welding machine comprises an alternating current power supply, a linked switch, a first transformer, a second transformer, a first fuse, a second fuse, a first light-emitting diode, a second light-emitting diode, a potentiometer, a relay, an intermediate relay, a time relay and an alternating current contactor. In the process of welding, a welding rod is contacted with a weldment, the intermediate relay is powered on and pick-up, a normally open contact of the alternating contactor is swithed on, a normally-closed switch is switched off, and the second transformer is powered on to work, so the welding operation can be conducted. If the welding operation is not conducted within the delay time set by the time relay, then when the delay time is over, a normally-closed contact switch of the time relay is enabled to be automatically disconnected, the working power supply is powered off, and the purpose of no-load electricity saving can be achieved. When the welding needs to continue, the welding machine can be powered on to work just by enabling the welding rod to be contacted with the work piece to be welded. The no-load power-saving circuit of the electric welding machine can achieve the purpose of no-load energy-saving, is convenient to operate, and avoids the danger of electric shock.
Description
Technical field
The present invention relates to a kind of electric welding machine circuit, particularly relate to a kind of no-load saving circuit of electric welding machine.
Background technology
Electric welding machine is that the high-temperature electric arc utilizing positive and negative polarities to produce when instantaneous short circuit comes solder on consumable electrode and materials to be welded, reaches the object making them combine, and therefore, its electric energy consumed is large, accounts for about 16.5% of production wastage in bulk or weight electric energy.Usually when welding processing, electric welding machine in running order time is not long, many when no-load running often, if can not cut off the electricity supply in time, not only cause the waste of electric energy, and due to electric welding machine standby time electric current large, output voltage is high, has certain danger, if hand off power supply, operation more complicated.
Summary of the invention
Object of the present invention is just the no-load saving circuit providing a kind of electric welding machine in order to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of no-load saving circuit of electric welding machine, comprise AC power, linked switch, first transformer, second transformer, first fuse, second fuse, first light emitting diode, second light emitting diode, potentiometer, relay, auxiliary reclay, the time relay and A.C. contactor, the first end of described AC power is connected with the first input end of described linked switch, first output of described linked switch is connected with the first end of described first fuse, second end of described first fuse is connected with the first end of the first end of the primary coil of described first transformer and the primary coil of described second transformer respectively, second end of described AC power is connected with the second input of described linked switch, second output of described linked switch is connected with the first end of described second fuse, second end of described second fuse is connected with the second end of the second end of the primary coil of described first transformer and the primary coil of described second transformer respectively, the first end of the secondary coil of described first transformer respectively with the first end of described auxiliary reclay, the first end of the described time relay is connected with the first end of described A.C. contactor, second end of the secondary coil of described first transformer respectively with the positive pole of described first light emitting diode, the positive pole of described second light emitting diode, the negative pole of described first light emitting diode, the first end of the normally opened contact switch of described A.C. contactor, the first end of the second normally opened contact switch of described auxiliary reclay is connected with the first end of the first normally-closed contact switch of described A.C. contactor, second end of the normally opened contact switch of described A.C. contactor is connected with the negative pole of described second light emitting diode, second end of described A.C. contactor is connected with the first end of the first normally opened contact switch of described auxiliary reclay, second end of the described time relay is connected with the first end of the first normally opened contact switch of described relay, second end of described auxiliary reclay is connected with the first end of the first normally-closed contact switch of the described time relay, second end of the first normally-closed contact switch of the described time relay respectively with the second end of the first normally opened contact switch of described relay, second end of the first normally opened contact switch of described auxiliary reclay, second end of the second normally opened contact switch of described auxiliary reclay is connected with the first end of the second normally-closed contact switch of described A.C. contactor, second end of the second normally-closed contact switch of described A.C. contactor is connected with the first end of weldment, second end of the first normally-closed contact switch of described A.C. contactor respectively with the first end of the secondary coil of described second transformer, the first end of described potentiometer, the sliding end of described potentiometer is connected with welding rod, second end of described potentiometer is connected with the first end of described relay, second end of described relay is connected with the second end of the secondary coil of described second transformer and the second end of weldment respectively.
Beneficial effect of the present invention is:
The present invention is a kind of no-load saving circuit of electric welding machine, if do not carry out welding operation in the delay time of time relay setting, then at the end of delay time, automatically can cut off working power, reach the object of no-load saving, when needs continue welding, as long as welding rod is laid a finger on workpiece to be welded, can be energized work, easy to operate, avoids the danger of electric shock.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the no-load saving circuit of a kind of electric welding machine of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, the no-load saving circuit of a kind of electric welding machine of the present invention, comprise AC power AC, linked switch Q, first transformer T1, second transformer T2, first fuse FU1, second fuse FU2, first LED 1, second LED 2, potentiometer RP, relay J, auxiliary reclay KA, time relay KT and A.C. contactor M, the first end of AC power AC is connected with the first input end of linked switch Q, first output of linked switch Q is connected with the first end of the first fuse FU1, second end of the first fuse FU1 is connected with the first end of the first end of the primary coil of the first transformer T1 and the primary coil of the second transformer T2 respectively, second end of AC power AC is connected with second input of linked switch Q, second output of linked switch Q is connected with the first end of the second fuse FU2, second end of the second fuse FU2 is connected with the second end of the second end of the primary coil of the first transformer T1 and the primary coil of the second transformer T2 respectively, the first end of the secondary coil of the first transformer T1 respectively with the first end of auxiliary reclay KA, the first end of time relay KT is connected with the first end of A.C. contactor M, second end of the secondary coil of the first transformer T1 respectively with the positive pole of the first LED 1, the positive pole of the second LED 2, the negative pole of the first LED 1, the first end of the normally opened contact switch M2 of A.C. contactor M, the first end of the second normally opened contact K switch A2 of auxiliary reclay KA is connected with the first end of the first normally-closed contact switch M1-1 of A.C. contactor M, second end of the normally opened contact switch M2 of A.C. contactor M is connected with the negative pole of the second LED 2, second end of A.C. contactor M is connected with the first end of the first normally opened contact K switch A1 of auxiliary reclay KA, second end of time relay KT is connected with the first end of the first normally opened contact switch J1 of relay, second end of auxiliary reclay KA is connected with the first end of the first normally-closed contact K switch T1 of time relay KT, second end of the first normally-closed contact K switch T1 of time relay KT respectively with second end of the first normally opened contact switch J1 of relay J, second end of the first normally opened contact K switch A1 of auxiliary reclay KA, second end of the second normally opened contact K switch A2 of auxiliary reclay KA is connected with the first end of the second normally-closed contact switch M1-2 of A.C. contactor M, second end of the second normally-closed contact switch M1-2 of A.C. contactor M is connected with the first end of weldment, second end of the first normally-closed contact switch M1-1 of A.C. contactor M respectively with the first end of the secondary coil of the second transformer T2, the first end of potentiometer RP, the sliding end of potentiometer RP is connected with welding rod, second end of potentiometer RP is connected with the first end of relay J, second end of relay J is connected with the second end of the secondary coil of the second transformer T2 and the second end of weldment respectively.
After connecting linked switch Q, the first transformer T1 energising work, the first LED 1 is luminous.During welding, welding rod is contacted with weldment, auxiliary reclay KA is energized adhesive, its normally opened contact switch connection, A.C. contactor M is energized adhesive, and the normally opened contact switch M2 of A.C. contactor M connects, normally-closed contact switch disconnects, second LED 2 is luminous, and the second transformer T2 energising work, shows to carry out welding operation.The induced voltage that the secondary coil of the second transformer T2 produces makes relay J adhesive, the normally opened contact switch J1 of relay J connects, time relay KT is energized and starts timing, if do not carry out welding operation in the delay time that time relay KT sets, then at the end of delay time, the normally-closed contact switch of time relay KT disconnects automatically, and A.C. contactor M and auxiliary reclay KA is discharged in succession, cut off working power, reach the object of no-load saving.When needs continue welding, as long as welding rod is laid a finger on workpiece to be welded, can be energized work.
Claims (1)
1. the no-load saving circuit of an electric welding machine, it is characterized in that: comprise AC power, linked switch, first transformer, second transformer, first fuse, second fuse, first light emitting diode, second light emitting diode, potentiometer, relay, auxiliary reclay, the time relay and A.C. contactor, the first end of described AC power is connected with the first input end of described linked switch, first output of described linked switch is connected with the first end of described first fuse, second end of described first fuse is connected with the first end of the first end of the primary coil of described first transformer and the primary coil of described second transformer respectively, second end of described AC power is connected with the second input of described linked switch, second output of described linked switch is connected with the first end of described second fuse, second end of described second fuse is connected with the second end of the second end of the primary coil of described first transformer and the primary coil of described second transformer respectively, the first end of the secondary coil of described first transformer respectively with the first end of described auxiliary reclay, the first end of the described time relay is connected with the first end of described A.C. contactor, second end of the secondary coil of described first transformer respectively with the positive pole of described first light emitting diode, the positive pole of described second light emitting diode, the negative pole of described first light emitting diode, the first end of the normally opened contact switch of described A.C. contactor, the first end of the second normally opened contact switch of described auxiliary reclay is connected with the first end of the first normally-closed contact switch of described A.C. contactor, second end of the normally opened contact switch of described A.C. contactor is connected with the negative pole of described second light emitting diode, second end of described A.C. contactor is connected with the first end of the first normally opened contact switch of described auxiliary reclay, second end of the described time relay is connected with the first end of the first normally opened contact switch of described relay, second end of described auxiliary reclay is connected with the first end of the first normally-closed contact switch of the described time relay, second end of the first normally-closed contact switch of the described time relay respectively with the second end of the first normally opened contact switch of described relay, second end of the first normally opened contact switch of described auxiliary reclay, second end of the second normally opened contact switch of described auxiliary reclay is connected with the first end of the second normally-closed contact switch of described A.C. contactor, second end of the second normally-closed contact switch of described A.C. contactor is connected with the first end of weldment, second end of the first normally-closed contact switch of described A.C. contactor respectively with the first end of the secondary coil of described second transformer, the first end of described potentiometer, the sliding end of described potentiometer is connected with welding rod, second end of described potentiometer is connected with the first end of described relay, second end of described relay is connected with the second end of the secondary coil of described second transformer and the second end of weldment respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310637385.8A CN104668731A (en) | 2013-11-29 | 2013-11-29 | No-load power-saving circuit of electric welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310637385.8A CN104668731A (en) | 2013-11-29 | 2013-11-29 | No-load power-saving circuit of electric welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104668731A true CN104668731A (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310637385.8A Pending CN104668731A (en) | 2013-11-29 | 2013-11-29 | No-load power-saving circuit of electric welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104668731A (en) |
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2013
- 2013-11-29 CN CN201310637385.8A patent/CN104668731A/en active Pending
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |