CN2299684Y - Power-saving life-increasing device for electric welder - Google Patents
Power-saving life-increasing device for electric welder Download PDFInfo
- Publication number
- CN2299684Y CN2299684Y CN 97222809 CN97222809U CN2299684Y CN 2299684 Y CN2299684 Y CN 2299684Y CN 97222809 CN97222809 CN 97222809 CN 97222809 U CN97222809 U CN 97222809U CN 2299684 Y CN2299684 Y CN 2299684Y
- Authority
- CN
- China
- Prior art keywords
- welding machine
- voltage
- electric welding
- power
- electric welder
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Generation Of Surge Voltage And Current (AREA)
Abstract
The utility model provides a power-saving service life-extending device for an electric welder. The utility model is characterized in that after a voltage reduction capacitor is connected in parallel with a normal opened contact of a control relay, the voltage reduction capacitor is connected in series with the middle part of a power supply and a primary winding of the electric welder, and the voltage reduction capacitor is used as a power supply switch. A voltage signal, a current negative feedback signal and a current positive feedback signal are from both ends of the primary winding of the electric welder. A voltage negative feedback circuit is connected in series with a resistor, and the voltage is divided and controls the base current for a control tube An electrode positive feedback circuit is bridged between a voltage division point and a base electrode of the control tube. Therefore, the utility model has the advantages of simple circuit, no debugging, low cost, reliable control, power saving, etc. The service life of the electric welder is extended.
Description
The utility model relates to a kind of welding equipment, specifically a kind of power-saving life-prolonging device of electric welding machine.
After existing electric welding machine was connected power supply, arcing time factor was about 30%, and still has a large amount of electric energy to be consumed in vain in the time about 70%.Be exactly the disclosed application number of Chinese patent be 912263253 " efficient energy-saving arc welder ", though energy-saving effect is arranged, its structure is very complicated, production cost also must increase substantially, and is difficult to apply.
The purpose of this utility model is to increase the power-saving life-prolonging device connecting power supply automatically when making it to weld and cut off the electricity supply automatically when stopping welding on existing electric welding machine basis.
The purpose of this utility model is intended being realized by following scheme: this device is made up of signal feedback circuit and control circuit, its decompression capacitor C be serially connected with power supply and winding of electric welding machine after control relay Jc normally opened contact is in parallel in the middle of, make power switch usefulness; The voltage negative feedback signal that constitutes by D1, R1, C1, DW1 and all be taken from winding two ends of electric welding machine by the positive current feedback signal that D2, R2, C2, DW2 constitute; Voltage negative feedback circuit D1, R1, C1, the DW1 dividing potential drop of connecting with resistance R 3, BG1 provides base current for control valve, and positive current feedback circuit D2, R2, C2, DW2 cross-over connection are between dividing point and control valve BG1 base stage.
Based on above-mentioned technical solution, cause the utlity model has circuit simple, need not debugging, with low cost, control is reliable, the advantages such as service life of especially economizing on electricity and prolonging electric welding machine.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is circuit theory diagrams of the present utility model.
As shown in Figure 1, with decompression capacitor C be serially connected with power supply and winding of electric welding machine after control relay J c normally opened contact partly is in parallel in the middle of, the voltage negative feedback signal that constitutes by D1, R1, C1, DW1 and all be taken from winding two ends of electric welding machine by the positive current feedback signal that D2, R2, C2, DW2 constitute, resistance R 3 dividing potential drop of connecting with voltage negative feedback circuit D1, R1, C1, DW1 provides base current for control valve BG1, positive current feedback circuit D2, R2, C2, DW2 then cross-over connection between dividing point and control valve BG1 base stage.
The course of work is such: after electric welding machine is connected power supply, because the hypotensive effect of capacitor C, the voltage that makes its winding two ends is only about 30V, this moment is because the existence of the voltage negative feedback signal of D1, R1, C1, DW1 formation, so the base voltage of control valve BG1 ends for-0.7V, J, Jc continue to disconnect; When the moment that electric welding machine is started working, the electric welding machine electric current increases suddenly, the voltage at its winding two ends promptly by 30V left and right sides bust to being almost 0, the voltage negative feedback signal is disappeared, and control valve BG1 provides base current by resistance R 3 and conducting makes J, Jc adhesive, automatically connect welder power, at this moment voltage negative feedback signal and positive current feedback signal exist simultaneously, however since the positive current feedback signal greater than the voltage negative feedback signal, so electric welding machine can be in operate as normal.After electric welding machine stopped welding the several seconds, because the positive current feedback blackout that D2, R2, C2, DW2 constitute, capacitor C 2 both end voltage discharge and descending caused control valve BG1 to be become by conducting and ends, thereby J, Jc discharge automatically, so the power supply of cut-out electric welding machine.
Claims (3)
1, a kind of electric welding machine power-saving life-prolonging device is made up of signal feedback circuit and control circuit, is serially connected with after it is characterized in that decompression capacitor C and control relay Jc normally opened contact being in parallel in the middle of power supply and winding of electric welding machine, makes power switch and uses.
2,, it is characterized in that the voltage negative feedback signal that constitutes by D1, R1, C1, DW1 and all be taken from winding two ends of electric welding machine by the positive current feedback signal that D2, R2, C2, DW2 constitute according to the described electric welding machine power-saving life-prolonging of claim 1 device.
3, according to claim 1 or 2 described electric welding machine power-saving life-prolonging devices, it is characterized in that voltage negative feedback circuit D1, R1, C1, the DW1 dividing potential drop of connecting with resistance R 3, BG1 provides base current for control valve, and positive current feedback circuit D2, R2, C2, DW2 cross-over connection are between dividing point and control valve BG1 base stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97222809 CN2299684Y (en) | 1997-06-02 | 1997-06-02 | Power-saving life-increasing device for electric welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97222809 CN2299684Y (en) | 1997-06-02 | 1997-06-02 | Power-saving life-increasing device for electric welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2299684Y true CN2299684Y (en) | 1998-12-09 |
Family
ID=33937757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97222809 Expired - Fee Related CN2299684Y (en) | 1997-06-02 | 1997-06-02 | Power-saving life-increasing device for electric welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2299684Y (en) |
-
1997
- 1997-06-02 CN CN 97222809 patent/CN2299684Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2299684Y (en) | Power-saving life-increasing device for electric welder | |
| CN201467011U (en) | Solar mobile power supply | |
| CN2865971Y (en) | Electric welder energy-saving controller | |
| CN109434250A (en) | A kind of dc welding machine no load energy-saving device | |
| CN212063474U (en) | Time delay device control circuit for protecting refrigerator | |
| CN2305749Y (en) | AC contactor controller | |
| CN2525727Y (en) | Wide voltage low power consumption switch power source of waiting machine | |
| CN2316760Y (en) | Operating supply unit for transformer substation | |
| CN2465311Y (en) | AC/dc arresting silence energy-saving contact | |
| CN2212260Y (en) | High efficiency energy saving protector for contactor | |
| CN201157948Y (en) | Energy-saving device for electric welding machine | |
| CN2684519Y (en) | Energy saving lamp being suitable for multiple power source voltages | |
| CN2195403Y (en) | Energy-saving source for air plasma cutter | |
| CN2437446Y (en) | Idle electricity saver for electric welder | |
| CN2355488Y (en) | Reactive random compensation loaded switch | |
| CN2325153Y (en) | No-load energy saving arrangement for electric welding machine | |
| CN2174832Y (en) | Ignition device for incandescent lamp | |
| CN2350941Y (en) | Electronic ballast for DC metal halide lamp | |
| CN2331127Y (en) | Limited current start-up self-control cabinet | |
| CN2181359Y (en) | All state power-saving device for arc welder | |
| CN2435546Y (en) | Controller for electric fan | |
| CN2289127Y (en) | High-efficiency energy-saving emergency lamp | |
| CN2480651Y (en) | Energy-saving type electricity-saving gas electromagnetic valve | |
| CN2370649Y (en) | Energy saving device for daylight lamp | |
| CN2305804Y (en) | Electronic voltage reduction startor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |