CN203140948U - Energy-saving over-heating protection device for electric welding machine - Google Patents
Energy-saving over-heating protection device for electric welding machine Download PDFInfo
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- CN203140948U CN203140948U CN 201220702057 CN201220702057U CN203140948U CN 203140948 U CN203140948 U CN 203140948U CN 201220702057 CN201220702057 CN 201220702057 CN 201220702057 U CN201220702057 U CN 201220702057U CN 203140948 U CN203140948 U CN 203140948U
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Abstract
The utility model provides an energy-saving over-heating protection device for an electric welding machine. The energy-saving over-heating protection device comprises an air break switch, a transformer, an electrode holder and a fan, and is characterized in that a capacitor is in series connection with the first stage of the transformer; a power-saving detector and a no-load detector are connected to the output end of the electrode holder; and an over-heating protector is arranged at the output end of the fan. The energy-saving over-heating protection device can automatically cut off the power supply of the electric welding machine when the electric welding machine has no load, and can automatically switch on the power supply of the electric welding machine when the welding starts; the dead time can be adjusted as required, without external connection with a connection wire and a handle microswitch, so that the energy consumption is low, and more than 98% no-load electric energy can be saved; meanwhile, the control voltage is 12 V low voltage, so that personal injury can be effectively avoided, and the working situation of the fan can be automatically detected out; and when the fan has no air flow, the energy-saving over-heating protection device can automatically cut off the power supply of the electric welding machine, so that burning loss of the electric welding machine due to overheat caused by the failure of the fan can be avoided, and the electric welding machine is efficiently protected accordingly.
Description
Technical field
The utility model relates to a kind of energy-saving protective device, and especially a kind of energy-conservation, overtemperature protection system of electric welding machine belong to the electric welding machine technical field.
Background technology
In the electric welding machine use, for realizing empty load energy-saving, adopting mostly in the soldering turret position at present increases microswitch, finishes welding job by the manual operation microswitch.There is following deficiency in this mode: 1) have high voltage on the soldering turret, be difficult to avoid ground entail dangers to operating personnel's personal safety; 2) microswitch need lengthen with the lengthening of bonding wire, is unfavorable for on-the-spot actual the use; 3) employed control line is longer, and microswitch damages easily, safeguards inconvenient.In addition, burning of existing electric welder transformer, mostly since electric welding machine overheated due to, and electric welding machine is overheated because fan damages, generally operating personnel are difficult to perceive the fan damage, thereby in the electric welding machine use, can be because of overheated very fast, and burn the transformer of electric welding machine at short notice.Therefore, must be improved prior art.
Summary of the invention
The purpose of this utility model is to provide a kind of energy-conservation, overtemperature protection system of electric welding machine; with when the electric welder no-load; can cut off welder power automatically; and welding the time can be connected power supply automatically; effectively reduce electric energy; when detecting fan failure automatically and do not work, can cut off welder power automatically again simultaneously, effectively protect electric welding machine overheated.Even if when this device breaks down, can ensure in normal way that still electric welding machine normally uses.
The utility model provides a kind of so energy-conservation, overtemperature protection system of electric welding machine; comprise air switch, transformer, soldering turret and fan; it is characterized in that sealing in electric capacity in primary; connect saving detector and unloaded detector at the soldering turret output, be provided with overheat protector at the fan output.
Described primary seals in capacitor C 1 and resistance R 1, make the secondary less voltage (10V) that has, be used for driving saving detector work, the setting of R1 simultaneously, can be when the electric welding machine deenergization, make high voltage electric weight that capacitor C 1 exists by R1 in 3～5 seconds with its whole consumption, prevent that operating personnel from getting an electric shock.
Described unloaded detector comprises bridge rectifier D 6-D9, relay coil 3J, Zener diode D10, the normally opened contact KM-3 of relay coil KM, the normally opened contact 3J-1 of time relay coil 1SJ and coupled relay coil 3J, the normally opened contact 4J-1 of relay coil 1J and coupled relay coil 4J, the normally opened contact 1SJ-1 of time relay coil 1SJ, the normally opened contact 1J-2 of relay coil 1J, the normally-closed contact 2SJ-1 of time relay coil 2SJ, the normally-closed contact KM-4 of time relay coil 2SJ and coupled relay coil KM, the normally-closed contact 1J-1 of relay coil KM and coupled relay coil 1J, the normally opened contact 2J-1 of relay coil 2J, in order to after the electric welding machine TB energising relay coil 3J is got, normally opened contact 3J-1 closure by 3J, time relay coil 1SJ is got, thereby timing is carried out in the zero load to electric welding machine TB, reach setting-up time, when if electric welding machine TB does not work yet, the normally opened contact 1SJ-1 timing closing of 1SJ, electric current is through 1SJ-1,2SJ-1 gets relay coil 1J, normally-closed contact 1 by 1J disconnects, make relay coil KM dead electricity, the normally opened contact KM-1 of KM disconnects, cut off electric welding machine TB power supply, thereby reach the purpose of unloaded economize on electricity.
Described saving detector comprises bridge rectifier D 1-D4, capacitor C 2, relay coil 4J, Zener diode D5, the normally-closed contact KM-2 of relay coil KM, the normally opened contact 4J-2 of time relay coil 3SJ and coupled relay coil 4J, the normally-closed contact 3SJ-1 of the time relay coil 3SJ that links to each other with fan, the normally opened contact 4J-1 of the relay coil 4J that links to each other with relay coil 1J, the input of this saving detector links to each other with the soldering turret output by the contact 2J-1 of relay coil 2J, so that during electric welding machine TB zero load economize on electricity, start energy-conservation sensors work by capacitor C 1, and relay coil 4J is got, the normally opened contact 4J-1 closure of 4J, and relay coil 1J is got, for welding job is prepared, in addition relay coil 4J get electric in, the normally opened contact 4J-2 closure of 4J, time relay coil 3SJ is got, when if electric welding machine is not worked yet, the normally-closed contact 3SJ-1 time-delay of 3SJ disconnects, cut off fan F power supply, fan F is stopped operating and be in electricity-saving state; When the welding beginning, soldering turret makes electric welding machine TB secondary voltage reduce to zero volt, thereby makes relay coil 4J dead electricity over the ground, and normally opened contact 4J-1, the 4J-2 of 4J disconnects.4J-2 disconnects and makes time relay coil 3SJ dead electricity, normally closed some 3SJ-1 closure, fan F work, the 2J invocation point, 2J-2 closure, 4J-1 disconnect and make relay coil 1J dead electricity, the normally-closed contact 1J-1 closure of 1J, thus relay coil KM is got, normally opened contact KM-1 by KM connects electric welding machine TB power supply automatically, and enters normal welding operating condition.
Described overheat protector by near K switch C1 and with this relay coil 2J that links to each other near K switch C1; the normally-closed contact of relay coil KM and the relay coil 1J that links to each other with this relay coil KM; the normally opened contact of relay coil 2J constitutes; and the input of overheat protector links to each other with the fan output; so that fan just often; by near K switch C1 relay coil 2J being got; the normal closing of contact of 2J and relay coil KM is got; normally opened contact by KM can be connected welder power; otherwise when fan failure is calm; relay coil 2J loses; the normally opened contact of 2J disconnects; make relay coil KM dead electricity; the normally opened contact of KM disconnects and cuts off welder power, reaches overtemperature protection.
Described electric welding machine TB, fan F are connected with selector switch DH1,
DH1When placing the left side; start this energy-conservation, overtemperature protection system work; when placing the right side, it is electric that relay coil KM is got, and make electric welding machine handle normal operating conditions; as long as blower fan does not have air quantity output; relay coil 2J dead electricity, relay coil KM dead electricity, electric welding machine quits work; prevent that electric welding machine from because losing heat radiation, burning and cause.
The utlity model has following advantage and effect: adopt such scheme; can be when electric welder no-load; can cut off welder power automatically; and when the welding beginning; can connect power supply automatically again; and idle time is adjustable as required; need not external line and handle microswitch, it is low to consume energy, and can save unloaded electric energy more than 98%; controlling voltage simultaneously is the 12V low-voltage; effectively avoid occurring personal injury, and can detect the fan work situation automatically, when fan does not have air quantity; automatically cut off welder power; prevent that electric welding machine is overheated to cause it by scaling loss because fan failure makes, effectively protect electric welding machine, when this device breaks down; still can normally use the task performance of performance electric welding machine as the common electrical welding machine by selector switch DH1.
Description of drawings
Fig. 1 is the circuit diagram of the utility model.
Among the figure; R1-when the electric welding machine dead electricity; there is the high voltage electric weight in capacitor C 1; can in 3～5 seconds, the electric energy of its storage all be consumed by resistance R 1; prevent that accident from hurting sb.'s feelings; D1～D4; D6～D9-be two-way bridge rectifier; C2-make voltage can access further lifting; be tending towards 12V; D5; D10-be Zener diode; 1J-be the normal operation of electric welding machine and energy-conservation switching relay coil; can cut off welder power when electric; it is energy-conservation that it is in; connect welder power during dead electricity; and make it normal operation; 2J-be that fan flow is exported the sampling relay coil; 3J-be unloaded sampling relay coil; 4J-be energy-conservation sampling relay coil; 1SJ-be unloaded control time relay coil; record idle time; transferred to energy-conservation by zero load with control; 2SJ-be energy-conservation conversion relay coil non-cutting time; the effect of 2SJ should be: after guaranteeing that unloaded timing begins, can allow relay coil 1J get electric and normally-closed contact 1J-1 by relay coil 1J disconnects and makes relay coil KM dead electricity, thereby disconnect by the normally opened contact KM-1 of relay coil KM; and the cut-out welder power; 3SJ-shut down the control time relay coil for fan is in power save mode for a long time at electric welding machine, behind the fan operation certain hour; automatically fan power supply is cut off; realize energy-conservation, KC1-for fan flow output sampling near switch, whether detect fan flow output normal.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Energy-conservation, the overtemperature protection system of the electric welding machine that the utility model provides; comprise air switch Q1, electric welding machine TB, soldering turret and fan F, in the elementary capacitor C 1 that seals in of electric welding machine TB, connect saving detector and unloaded detector at the soldering turret output; be provided with overheat protector at the fan output, wherein:
Described primary seals in capacitor C 1 and resistance R 1, make the secondary less voltage (10V) that has, be used for driving saving detector work, the setting of R1 simultaneously, can be when the electric welding machine deenergization, make high voltage electric weight that capacitor C 1 exists by R1 in 3～5 seconds with its whole consumption, prevent that operating personnel from getting an electric shock;
Described unloaded detector comprises bridge rectifier D 6-D9, relay coil 3J, Zener diode D10, the normally opened contact KM-3 of relay coil KM, the normally opened contact 3J-1 of time relay coil 1SJ and coupled relay coil 3J, the normally opened contact 4J-1 of relay coil 1J and coupled relay coil 4J, the normally opened contact 1SJ-1 of time relay coil 1SJ, the normally opened contact 1J-2 of relay coil 1J, the normally-closed contact 2SJ-1 of time relay coil 2SJ, the normally-closed contact KM-4 of time relay coil 2SJ and coupled relay coil KM, the normally-closed contact 1J-1 of relay coil KM and coupled relay coil 1J, the normally opened contact 2J-1 of relay coil 2J, in order to after the electric welding machine TB energising relay coil 3J is got, normally opened contact 3J-1 closure by relay coil 3J, time relay coil 1SJ is got, thereby timing is carried out in the zero load to electric welding machine TB, when reaching setting-up time electric welding machine TB and not working yet, the normally opened contact 1SJ-1 timing closing of time relay coil 1SJ, electric current is through 1SJ-1,2SJ-1 gets relay coil 1J, normally-closed contact 1 by relay coil 1J disconnects, make relay coil KM dead electricity, the normally opened contact KM-1 of relay coil KM disconnects, cut off electric welding machine TB power supply, thereby reach the purpose of unloaded economize on electricity;
Described saving detector comprises bridge rectifier D 1-D4, capacitor C 2, relay coil 4J, Zener diode D5, the normally-closed contact KM-2 of relay coil KM, the normally opened contact 4J-2 of time relay coil 3SJ and coupled relay coil 4J, the normally-closed contact 3SJ-1 of the time relay coil 3SJ that links to each other with fan, the normally opened contact 4J-1 of the relay coil 4J that links to each other with relay coil 1J, the input of this saving detector links to each other with the soldering turret output by the contact 2J-1 of relay coil 2J, so that during electric welding machine TB zero load economize on electricity, start energy-conservation sensors work by capacitor C 1, and relay coil 4J is got, the normally opened contact 4J-1 closure of relay coil 4J, and relay coil 1J is got, for welding job is prepared, in addition relay coil 4J get electric in, the normally opened contact 4J-2 closure of relay coil 4J, time relay coil 3SJ is got, when if electric welding machine is not worked yet, the normally-closed contact 3SJ-1 time-delay of time relay coil 3SJ disconnects, cut off fan F power supply, fan F is stopped operating and be in electricity-saving state; When the welding beginning, soldering turret over the ground, make electric welding machine TB secondary voltage reduce to zero volt, thereby make relay coil 4J dead electricity, the normally opened contact 4J-1 of relay coil 4J disconnects, and makes relay coil 1J dead electricity, and the normally-closed contact 1J-1 closure of relay coil 1J gets relay coil KM, normally opened contact KM-1 by relay coil KM connects electric welding machine TB power supply automatically, and enters normal welding operating condition;
Described overheat protector is by near K switch C1 and coupled relay coil 2J, the normally-closed contact of relay coil KM and coupled relay coil 1J, the normally opened contact of relay coil 2J, and the input of overheat protector links to each other with the fan output, so that fan just often, by near K switch C1 relay coil 2J being got, the normal closing of contact of relay coil 2J and just relay coil KM get, normally opened contact by relay coil KM can be connected welder power, otherwise when fan failure is calm, relay coil 2J loses, the normally opened contact of relay coil 2J disconnects, make relay coil KM dead electricity, the normally opened contact of relay coil KM disconnects and cuts off welder power, reaches overtemperature protection;
Described electric welding machine TB, fan F are connected with selector switch DH1; when DH1 places the left side, start this energy-conservation, overtemperature protection system work, when placing the right side; relay coil KM is got; and make electric welding machine handle normal operating conditions, have only when blower fan does not have air quantity output relay coil 2J dead electricity; relay coil KM dead electricity; electric welding machine quits work, and prevents that electric welding machine from because losing heat radiation, burning and cause.
Claims (6)
1. energy-conservation, the overtemperature protection system of an electric welding machine; comprise air switch, transformer, soldering turret and fan; it is characterized in that sealing in electric capacity in primary, connect saving detector and unloaded detector at the soldering turret output, be provided with overheat protector at the fan output.
2. energy-conservation, overtemperature protection system according to claim 1 is characterized in that described primary seals in capacitor C 1 and resistance R 1.
3. according to claim 1 energy-conservation; overtemperature protection system; it is characterized in that described unloaded detector comprises bridge rectifier D 6-D9; relay coil 3J; Zener diode D10; the normally opened contact KM-3 of relay coil KM; the normally opened contact 3J-1 of time relay coil 1SJ and coupled relay coil 3J; the normally opened contact 4J-1 of relay coil 1J and coupled relay coil 4J; the normally opened contact 1SJ-1 of time relay coil 1SJ; the normally opened contact 1J-2 of relay coil 1J; the normally-closed contact 2SJ-1 of time relay coil 2SJ; the normally-closed contact KM-4 of time relay coil 2SJ and coupled relay coil KM, the normally-closed contact 1J-1 of relay coil KM and coupled relay coil 1J; the normally opened contact 2J-1 of relay coil 2J.
4. according to claim 1 energy-conservation; overtemperature protection system; it is characterized in that described saving detector comprises bridge rectifier D 1-D4; capacitor C 2; relay coil 4J; Zener diode D5; the normally-closed contact KM-2 of relay coil KM; the normally opened contact 4J-2 of time relay coil 3SJ and coupled relay coil 4J; the normally-closed contact 3SJ-1 of the time relay coil 3SJ that links to each other with fan; the normally opened contact 4J-1 of the relay coil 4J that links to each other with relay coil 1J, the input of this saving detector links to each other with the soldering turret output by the contact 2J-1 of relay coil 2J.
5. energy-conservation, overtemperature protection system according to claim 1; it is characterized in that described overheat protector by near K switch C1 and with this relay coil 2J that links to each other near K switch C1; the normally-closed contact of relay coil KM and the relay coil 1J that links to each other with this relay coil KM, the normally opened contact of relay coil 2J constitute, and the input of overheat protector links to each other with the fan output.
6. energy-conservation, overtemperature protection system according to claim 1 is characterized in that described electric welding machine TB, fan F are connected with selector switch DH1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702057 CN203140948U (en) | 2012-12-18 | 2012-12-18 | Energy-saving over-heating protection device for electric welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702057 CN203140948U (en) | 2012-12-18 | 2012-12-18 | Energy-saving over-heating protection device for electric welding machine |
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| Publication Number | Publication Date |
|---|---|
| CN203140948U true CN203140948U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220702057 Expired - Lifetime CN203140948U (en) | 2012-12-18 | 2012-12-18 | Energy-saving over-heating protection device for electric welding machine |
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| Country | Link |
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| CN (1) | CN203140948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974919A (en) * | 2012-12-18 | 2013-03-20 | 云南昆钢重型装备制造集团有限公司 | Energy-saving overheat protection device of electric welder |
-
2012
- 2012-12-18 CN CN 201220702057 patent/CN203140948U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974919A (en) * | 2012-12-18 | 2013-03-20 | 云南昆钢重型装备制造集团有限公司 | Energy-saving overheat protection device of electric welder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
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| CX01 | Expiry of patent term |