CN1810431A - Power economizer for electric welder - Google Patents
Power economizer for electric welder Download PDFInfo
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- CN1810431A CN1810431A CN 200510122873 CN200510122873A CN1810431A CN 1810431 A CN1810431 A CN 1810431A CN 200510122873 CN200510122873 CN 200510122873 CN 200510122873 A CN200510122873 A CN 200510122873A CN 1810431 A CN1810431 A CN 1810431A
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Abstract
The power economizer for electric welder includes a start-up circuit, a work circuit, and a current detection circuit. One control transformer T set in the start-up circuit and the work circuit has its primary winding connected to the power source; one first secondary winding, with is connected to the secondary winding of the electric welder in parallel to constitute the start-up circuit together with a rectifier and the relay KA1; and one second secondary winding, which constitute the work circuit together with an other rectifier, the relay KA2 and a time relay KT1. One current signal transformer T1 has its primary winding connected serially to the primary winding of the electric welder and its secondary winding constitute the current detection circuit together with its rectifier and the relay KA3. The power economizer has simple structure, low cost, sensitive control and low power consumption.
Description
Technical field
The present invention relates to a kind of power-saving technique, is a kind of power economizer for electric welder specifically.
Background technology
Electric welding machine economize on electricity emphasis is unloaded economize on electricity, and do not do work during because of zero load exciting current and the heating of electric welding machine own will consume more electric energy, and idle time is long more, and the waste electric energy is just many more.The present electric welding machine that generally uses, no matter be that AC welding set or DC welder all belong to the zero load type of not economizing on electricity, and this part old-fashioned electric welding machine, because cost is low, durability is good, so adopted by vast industrial enterprise, quantity is a lot, and the electric energy of waste is very big, and this is the old problem of the individual fine solution of failing for a long time.Occurred the electric welding machine with the high technology content of electronic circuit control in recent years, its power savings is good, but working environment is required height, needs periodic maintenance, and cost is too high, and general factories and miness adverse circumstances are not too suitable, are difficult to generally promote the use of.
Summary of the invention
The invention provides a kind of simple in structure, cost is low, control is sensitive, the few power economizer for electric welder of power consumption.
Technical scheme of the present invention is as follows: a kind of power economizer for electric welder, form by transformer and A.C. contactor, it is characterized in that it comprises start-up circuit, work operation circuit, current detection circuit, start-up circuit and work operation circuit adopt control transformer T, the primary coil of control transformer T is connected with power line, secondary coil of control transformer T and the secondary coil of electric welding machine mutually and connect, the cross-over connection between the output line after the rectification of the secondary coil of control transformer has relay K A
1, constitute start-up circuit; The cross-over connection between the output line after the rectification of another secondary coil of control transformer has relay K A
2, time relay KT
1, formation work operation circuit; Current signal transformer T
1Primary coil be connected in series current signal transformer T mutually with the electric welding machine primary coil
1Secondary coil cross-over connection between the output line after the rectification relay K A is arranged
3, constitute current detection circuit; Relay K A
2Normally opened contact K ' A
2' be connected with the coil of contactor KM, contactor KM is serially connected between power line and the electric welding machine.
The secondary coil of control transformer is connected with relay K A in the described start-up circuit
2Normally-closed contact K ' A
2
The output cross-over connection of secondary coil after rectification of control transformer has relay K A in the described work operation circuit
2, time relay KT
1, relay K A wherein
1Normally-closed contact K ' A
1, time relay KT
1Normally-closed contact K ' T
1With relay K A
2Connect relay K A
1Normally-closed contact K ' A
1, relay K A
3Normally-closed contact K ' A
3With time relay KT
1Be connected.
Current signal transformer T in the described current detection circuit
1The output of secondary coil after rectification also cross-over connection capacitor C is arranged.
A kind of power economizer for electric welder of the present invention is inserted AC380V or AC220V electrical source of power, the power line of welding machine is directly received the battery saving arrangement power output end, and two potential differences are started lines link to each other respectively with ground wire with the soldering turret line of welding machine, serve power supply, welding machine is operate as normal originally, if the unmanned welding machine that uses, welding machine just quits work automatically after several seconds, when needs are used welding machine, and need only be as usual with welding rod striking over the ground, welding machine just starts rapidly, can normally weld.When stopping to weld, just can quit work automatically again after the several seconds, thereby fully reach loss and the valuable waste of electric energy that reduces idle work, also utilize the working time of welding machine to greatest extent, prolong the Acceptable life of welding machine.When powered-down not, battery saving arrangement generally all is in holding state, after closing welding machine automatically, by the triggering signal circuit of the battery saving arrangement transformer secondary output at welding machine, the interchange light current that forms trace is pressed, when the welding rod on the soldering turret and ground wire are collided, just make the current potential on secondary produce drop, after battery saving arrangement inside obtains triggering signal, just close start-up circuit immediately automatically, open welding machine electric power, make the staff can normally use welding machine.Battery saving arrangement inside has installed current detection circuit additional, is unlikely to close suddenly the power supply of electric welding machine thereby make when welding, and influences welding quality.As weld interruption, current detection circuit detects less than working signal, just cut off the electric welding machine working power after several seconds automatically, enter electricity-saving state, though battery saving arrangement is in running order always, its work power consumption is quite little, only is 10W, with comparing about electric welder no-load power consumption 2KW, almost nil.
Description of drawings
Fig. 1 is the principle schematic of the embodiment of the invention
The specific embodiment
With reference to accompanying drawing, a kind of power economizer for electric welder, comprise start-up circuit 1, work operation circuit 2, current detection circuit 3, start-up circuit 1 and work operation circuit 2 adopt control transformer T, the primary coil of control transformer T is connected with power line, secondary coil of control transformer T and the secondary coil of electric welding machine 5 mutually and connect, the secondary coil of control transformer T is serially connected with relay K A
2Two normally-closed contact K ' A
2, and the output of the secondary coil of control transformer T behind bridge rectifier is serially connected with relay K A
1, constitute start-up circuit 1; Another secondary coil of control transformer T behind bridge rectifier output and be connected to relay K A
2With time relay KT
1, wherein, relay K A
1Normally-closed contact K ' A
1, time relay KT
1Normally-closed contact K ' T
1With relay K A
2Serial connection, relay K A
1Normally-closed contact K ' A
1, relay K A
3Normally-closed contact K ' A
3With time relay KT
1Serial connection, formation work operation circuit 2; Current signal transformer T
1Primary coil be connected in series current signal transformer T mutually with electric welding machine 5 primary coils
1Secondary coil behind bridge rectifier output and be connected to filter capacitor C and relay K A
3, constitute current detection circuit 3; Relay K A
2Normally opened contact K ' A
2' be connected with the coil of contactor KM, contactor KM is serially connected between power line and the electric welding machine.Power supply is through control transformer T step-down, provides two groups of power supplys to use to start-up circuit 1 and work operation circuit 2 respectively, and when start-up circuit electrode holders and ground wire were collided, the voltage at two ends descended rapidly, makes relay K A
1The contact transfer closure state rapidly to by off-state, thereby make operation circuit relay electrical equipment KA
2Get electric work, relay K A
2Get electric rear drive contactor KM, with the power connection of electric welding machine and the relay K A in the countercharge start-up circuit 1
1, make its no longer adhesive, to guarantee the safety of start-up circuit and control transformer.During welding, the current signal transformer T of current detection circuit
1To sense the operating current of electric welding machine, make relay K A
3Coil constitute the loop, by adhesive, turn-off time relay K T
1Power supply, allow relay K A
2Being able to work with contactor KM keeps.If the staff is not engaged in welding job, promptly the current signal transformer induction of current detection circuit is less than current signal, relay K A
3Can't adhesive, time relay KT so
1To start working, just disconnect relay K A after the several seconds
2Wire loop, make contactor disconnect the working power of electric welding machine and relay K A
1Enabling signal is next time waited in adhesive again.
Claims (4)
1, a kind of power economizer for electric welder, form by transformer and A.C. contactor, it is characterized in that it comprises start-up circuit (1), work operation circuit (2), current detection circuit (3), start-up circuit (1) and work operation circuit (2) adopt control transformer T, the primary coil of control transformer T is connected with power line, secondary coil of control transformer T and the secondary coil of electric welding machine (5) mutually and connect, the cross-over connection between the output line after the rectification of the secondary coil of control transformer T has relay K A
1, constitute start-up circuit (1); The cross-over connection between the output line after the rectification of another secondary coil of control transformer T has relay K A
2, time relay KT
1, formation work operation circuit (2); Current signal transformer T
1Primary coil be connected in series current signal transformer T mutually with electric welding machine (5) primary coil
1Secondary coil cross-over connection between the output line after the rectification relay K A is arranged
3, constitute current detection circuit (3); Relay K A
2Normally opened contact K ' A
2' be connected with the coil of contactor KM, contactor KM is serially connected between power line and the electric welding machine (5).
2,, it is characterized in that the secondary coil of control transformer T in the start-up circuit (1) is connected with relay K A according to right 1 described a kind of power economizer for electric welder
2Normally-closed contact K ' A
2
3,, it is characterized in that the output cross-over connection of secondary coil after rectification of control transformer T in the work operation circuit (2) has relay K A according to right 1 or 2 described a kind of power economizer for electric welder
2, time relay KT
1, relay K A wherein
1Normally-closed contact K ' A
1, time relay KT
1Normally-closed contact K ' T
1With relay K A
2Connect relay K A
1Normally-closed contact K ' A
1, relay K A
3Normally-closed contact K ' A
3With time relay KT
1Be connected.
4,, it is characterized in that current signal transformer T in the current detection circuit (3) according to right 3 described a kind of power economizer for electric welder
1The output of secondary coil after rectification also cross-over connection capacitor C is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510122873 CN1810431A (en) | 2005-12-06 | 2005-12-06 | Power economizer for electric welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510122873 CN1810431A (en) | 2005-12-06 | 2005-12-06 | Power economizer for electric welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1810431A true CN1810431A (en) | 2006-08-02 |
Family
ID=36843625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510122873 Pending CN1810431A (en) | 2005-12-06 | 2005-12-06 | Power economizer for electric welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1810431A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722275A (en) * | 2013-12-04 | 2014-04-16 | 山东金阳矿业集团有限公司 | Energy-saving electric welding machine |
| CN109047992A (en) * | 2018-09-20 | 2018-12-21 | 西安拓锋机电科技有限公司 | It efficiently cuts and carries economize on electricity control route |
-
2005
- 2005-12-06 CN CN 200510122873 patent/CN1810431A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722275A (en) * | 2013-12-04 | 2014-04-16 | 山东金阳矿业集团有限公司 | Energy-saving electric welding machine |
| CN109047992A (en) * | 2018-09-20 | 2018-12-21 | 西安拓锋机电科技有限公司 | It efficiently cuts and carries economize on electricity control route |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |