CN201881036U - Idling current saver for AC/DC electric welding machine - Google Patents
Idling current saver for AC/DC electric welding machine Download PDFInfo
- Publication number
- CN201881036U CN201881036U CN2010206691551U CN201020669155U CN201881036U CN 201881036 U CN201881036 U CN 201881036U CN 2010206691551 U CN2010206691551 U CN 2010206691551U CN 201020669155 U CN201020669155 U CN 201020669155U CN 201881036 U CN201881036 U CN 201881036U
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- welding machine
- transformer
- electric welding
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- relay
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Abstract
The utility model discloses an idling current saver for an AC/DC electric welding machine, which comprises a control transformer, wherein the control transformer is connected with a welding machine transformer through a current transformer; a rectification circuit and a control loop are arranged on the right side of the secondary winding of the control transformer; the current transformer is further connected with a current relay; and the right side of the secondary winding of the welding machine transformer is connected with a welding gun. In the utility model, the electricity utilization state of the electric welding machine can be controlled in time; when electric welding machine stops welding, a controller can be used for automatically switching off the power so as to enable the electric welding machine to be in a dormant state without power consumption; and when the electric welding machine is required to be used for welding, the controller can be used for automatically activating the electric welding machine, so that the electric welding machine works normally at a working voltage. Therefore, not only the active electric energy is saved, but also the reactive loss is reduced to zero, the power factor of a power network is improved, and a very remarkable electricity-saving effect is achieved.
Description
Technical field
The utility model relates to a kind of AC-DC welder no load power saver, belongs to electric welding machine economize on electricity field.
Background technology
The problem of electric welder no-load power consumption ubiquity energy waste, a large amount of electric energy be as clear river, just do not flowed away in vain by any utilization, and existing is the example analysis of economizing on electricity with 500 or 630 type electric welding machines commonly used; The new old direct relation of the size of no-load current and electric welding machine, through groping to detect use at the electric welding machine more than 3 months, no-load current is between 8A-15A even higher, it now is example with 11A, by to dissimilar electric welding field site observations, calculate the average effective service time of electric welding machine in enterprise practical uses; Working time the electric welding machine more than 8 hours, since welder's action need adjust the position of welded piece or change uncertain factors such as doing other work, accumulative total idle time temporarily up to more than 4 hours.
The utility model content
For remedying the deficiencies in the prior art, the utility model provides a kind of AC-DC welder no load power saver that can economize on electricity when unloaded.
For achieving the above object, the utility model adopts following technical scheme:
The AC-DC welder no load power saver, it comprises control transformer, control transformer is connected with welder transformer by current transformer; The Secondary Winding rectification circuit of described control transformer connects, rectification circuit and control loop series connection; Described current transformer also is connected with electric current relay; Described welder transformer Secondary Winding is connected with welding gun.
Described control loop comprises two interlocking loops in parallel, wherein, first interlocking loop comprises the time relay sj normally-closed contact, the time relay sj normally-closed contact is connected with the normally-closed contact of A.C. contactor KM and relay ZJ1 successively, second interlocking loop comprises the normally-closed contact of relay LJ, and the normally-closed contact of relay LJ is connected with the normally opened contact of time relay sj and A.C. contactor KM successively; And A.C. contactor KM also is connected with the normally opened contact of A.C. contactor KM.
Operation principle: behind the power turn-on switch Q, alternating current 220V (or 380V) voltage is through series capacitor C1, and step-down is about 100V, and 100V voltage is added to winding two ends at electric welding machine B1 and control transformer B2 simultaneously.The Secondary Winding of control transformer B2 produces induced voltage after Z rectification, C2 filtering, by the DC voltage about voltage adjustment two ends generation 12V.Relay ZJ1 gets electric back normally closed interlock and disconnects, and at this moment, is in cut-off state, not adhesive of relay ZJ1, and the switch contacts of A.C. contactor KM is in off-state.The induced-current that produces among the current transformer TA is very little, and LJ is failure to actuate, and is in holding state.When the electric welder touches weldment with welding rod, the Secondary Winding of electric welding machine B1 transformer contacts short circuit with weldment, control transformer B2 produces pressure drop simultaneously, relay ZJ1 is under-voltage, and the normally closed point in back is connected, starting KM by normally closed some self-locking of SJ the time SJ time relay get and begin action after electric, the work of electric welding machine B1 normal power-up is not if weld object in the time of setting, the normally closed point of the SJ time relay can disconnect at the time delays of setting, and forms the dormancy standby.If weld object this moment in official hour, the normally closed point of electric current relay LJ disconnects, and makes SJ time relay dead electricity, and KM still is in normal operating conditions.The scope of surpass setting when electric welder's time of staying, the SJ time relay by the normally closed point of LJ the time-delay of electric back disconnects KM, force KM to disconnect, make the electric welding machine forced dormancy, reach power savings.
Beneficial effect: the utility model can be controlled the electricity condition of using of electric welding machine in good time, and when electric welding machine stopped to weld, the controller auto power off made electric welding machine be in resting state, no power consumption; When needs weld, controller will hit electric welding machine alive automatically, electric welding machine is under the operating voltage normally use.Not only save active energy, also make reactive loss be reduced to zero, improved power factor of electric network, the power savings highly significant was recouped capital outlay in 1-2 months.Electric welding machine secondary output voltage 5-8V only under Light Condition has guaranteed operating personnel's safety, is to achieve many things at one stroke.
Power savings is obvious:
1 electric welding machine minimal waste every day electric weight: 2.717 degree/hour * 4 hours=10.86 degree;
1 electric welding machine minimal waste in January electric weight: 10.86 degree * 30 days=326.04 degree;
1 year minimal waste electric weight of 1 electric welding machine: 10.86 degree * 365 days=3963 degree;
1 annual minimum saving of electric welding machine (if every degree electricity price) is calculated 3963 for 0.9 yuan and is spent=3566 yuan of * 0.9 yuan/degree.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the AC-DC welder no load power saver, it comprises control transformer, control transformer is connected with welder transformer by current transformer; The Secondary Winding rectification circuit of described control transformer connects, rectification circuit and control loop series connection; Described current transformer also is connected with electric current relay; Described welder transformer Secondary Winding is connected with welding gun.
Described control loop comprises two interlocking loops in parallel, wherein, first interlocking loop comprises the time relay sj normally-closed contact, the time relay sj normally-closed contact is connected with the normally-closed contact of A.C. contactor KM and relay ZJ1 successively, second interlocking loop comprises the normally-closed contact of relay LJ, and the normally-closed contact of relay LJ is connected with the normally opened contact of time relay sj and A.C. contactor KM successively; And A.C. contactor KM also is connected with the normally opened contact of A.C. contactor KM.
Claims (2)
1. the AC-DC welder no load power saver is characterized in that, it comprises control transformer, and control transformer is connected with welder transformer by current transformer; The Secondary Winding of described control transformer is connected with rectification circuit, rectification circuit and control loop series connection; Described current transformer also is connected with electric current relay; Described welder transformer Secondary Winding is connected with welding gun.
2. AC-DC welder no load power saver as claimed in claim 1, it is characterized in that described control loop comprises two interlocking loops in parallel, wherein, first interlocking loop comprises the time relay sj normally-closed contact, the time relay sj normally-closed contact successively with A.C. contactor KM and relay ZJ
1Normally-closed contact series connection, second interlocking loop comprises the normally-closed contact of relay LJ, the normally-closed contact of relay LJ successively with the normally opened contact series connection of time relay sj and A.C. contactor KM; And A.C. contactor KM also is connected with the normally opened contact of A.C. contactor KM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206691551U CN201881036U (en) | 2010-12-20 | 2010-12-20 | Idling current saver for AC/DC electric welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206691551U CN201881036U (en) | 2010-12-20 | 2010-12-20 | Idling current saver for AC/DC electric welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201881036U true CN201881036U (en) | 2011-06-29 |
Family
ID=44178565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206691551U Expired - Fee Related CN201881036U (en) | 2010-12-20 | 2010-12-20 | Idling current saver for AC/DC electric welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201881036U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247317A (en) * | 2020-09-16 | 2021-01-22 | 中车西安车辆有限公司 | Secondary side electric shock protection device, multi-station direct current welding machine and control method thereof |
| CN113843479A (en) * | 2021-10-14 | 2021-12-28 | 中国船舶重工集团公司第七一六研究所 | Energy-saving method and system for welding power supply |
-
2010
- 2010-12-20 CN CN2010206691551U patent/CN201881036U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247317A (en) * | 2020-09-16 | 2021-01-22 | 中车西安车辆有限公司 | Secondary side electric shock protection device, multi-station direct current welding machine and control method thereof |
| CN113843479A (en) * | 2021-10-14 | 2021-12-28 | 中国船舶重工集团公司第七一六研究所 | Energy-saving method and system for welding power supply |
| CN113843479B (en) * | 2021-10-14 | 2023-09-26 | 中国船舶集团有限公司第七一六研究所 | Welding power supply energy saving method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20131220 |