CN204836757U - Control system of multi -functional flatiron frame - Google Patents
Control system of multi -functional flatiron frame Download PDFInfo
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- CN204836757U CN204836757U CN201520401646.0U CN201520401646U CN204836757U CN 204836757 U CN204836757 U CN 204836757U CN 201520401646 U CN201520401646 U CN 201520401646U CN 204836757 U CN204836757 U CN 204836757U
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Abstract
The utility model discloses a control system of multi -functional flatiron frame, including power module, 555 timer pulse circuit, coil, huge magneto resistive sensor, voltage comparater, relay circuit, power module's output and 555 timer pulse circuit's input are connected, other end ground connection is connected to the one end and 555 timer pulse circuit's the output of coil, huge magneto resistive sensor is connected with 555 timer pulse circuit outputs and voltage comparater's input respectively, voltage comparater's output terminal connected relay circuit. The utility model discloses a control system of multi -functional flatiron frame makes ordinary electric iron, also can have to prevent static and energy -conserving function when using.
Description
Technical field
The invention belongs to electronic technology field, be specifically related to a kind of control system of Multifunctional iron frame.
Background technology
Electronic technology is the emerging technology starting late nineteenth century to grow up, and its development is swift and violent, has become an important symbol of modern science technical development.Modern electronic technology plays a part huge in the every field such as national defence, science, industry, medical science, communication and culture life.The application of electronic technology and Electronic products manufacturing and maintenance all be unable to do without electric iron; Electric iron is the indispensable instrument of electronic production and electrical maintenance.
At present, in the welding of electronic production and maintenance, there is two problems:
1, electric iron electrostatic can to electrostatic sensitivity device as: field effect transistor, CMOS integrated circuit, chip etc. cause damage.Current common practices is by electric iron ground connection or pulls up electric iron plug and utilize waste heat to weld, and operates extremely inconvenient;
2, when welding job rests, electric iron is still in running order, not only wastes electric energy, and heating wire is in the condition of high temperature always, the heat that solder horn is assembled can not dissipation in time, both easily burnt out heating wire, accelerate again the aging of solder horn, reduce the useful life of electric iron.If turn off power supply between the down-time period, during welding, reclose power supply, need warm-up time again, affect operating efficiency.
At present, have some electric iron to have antistatic and energy-conservation function, but its price costly, and market also has the electric iron not possessing antistatic and power saving function common in a large number in use, therefore need to make common electric iron, also can have antistatic and energy-conservation function in use.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of control system with the Multifunctional iron frame of antistatic and energy-conservation function
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of control system of Multifunctional iron frame, comprises power module, 555 timer pulse circuit, coil, giant magneto-resistance sensor, voltage comparator and relay circuit;
Described voltage conversion circuit is used for 220V alternating current to be converted to 5V direct current;
The input of 555 described timer pulse circuit is connected with the output of power module, for 5V direct current being converted to the square-wave voltage of a certain frequency, to be adjusted frequency size by rheostat;
Described coil is by enamelled wire around on the groove hollow backbone of Iron Stand, and one end of coil is connected with the output of 555 timer pulse circuit, other end ground connection; When square-wave voltage is by coil, produces periodically variable electric current in coil, make to produce alternating magnetic field around;
Described giant magneto-resistance sensor is arranged at and is close to coil plane center, and giant magneto-resistance sensor is connected with 555 timer pulse circuit output ends, and change changes of magnetic field being converted to voltage signal exports;
The input of described voltage comparator is connected with giant magneto-resistance sensor, and after the change of giant magneto-resistance sensor output voltage, voltage comparator output level overturns;
Relay circuit input connects with the output of voltage comparator, and the other end connects the output of power module, the break-make of voltage comparator output signal control relay circuit.
Further, described power module is made up of transformer TC, rectification circuit and 7805 pressurizers; The output of described transformer TC connects the rectification circuit be made up of diode D1, diode D2, diode D3 and diode D4; Transformer TC output while be connected with the positive pole of diode D1 and the negative pole of diode D2, positive pole and the D4 negative pole of another side and diode D3 are connected; The negative pole of diode D1 is connected with the negative pole of diode D3; The filter circuit be made up of electric capacity C1 and electric capacity C2 is provided with between described rectification circuit and 7805 described pressurizers; One pole of electric capacity C1 is connected with a pole of the negative pole of diode D3, electric capacity C2 and the input of 7805 pressurizers; Another pole of electric capacity C1 is ground connection together with another pole of the positive pole of diode D4, electric capacity C2 and the earth terminal of 7805 pressurizers; The output of 7805 described pressurizers is connected with the input of the filter circuit be made up of with electric capacity C4 electric capacity C3 and 555 timer pulse circuit;
Further, 555 described timer pulse circuit are made up of ne555 time-base circuit, resistance R1, resistance R2, electric capacity D5, electric capacity D6, electric capacity C5 and electric capacity C6; 1 pin GND ground connection of ne555 time-base circuit; 4 pin MR of ne555 time-base circuit and 8 pin VDD connect the output of power module; 3 pin V0 of ne555 time-base circuit are output, export square-wave voltage; 5 pin Vc of ne555 time-base circuit connect one end of electric capacity C5, the other end ground connection of electric capacity C5; 2 pin TR of ne555 time-base circuit are connected with 6 pin TH and are connected with one end of electric capacity C6 and the lever arm of slide rheostat Rp1 afterwards; The other end ground connection of electric capacity C6; One end of one end contact resistance R1 of described slide rheostat Rp1, the other end connects the negative pole of diode D5, and the positive pole of diode D5 connects 7 pin DIS of ne555 time-base circuit and one end of resistance R7; The other end of resistance R1 connects the positive pole of diode D6; The negative pole of diode D6 connects 7 pin DIS of ne555 time-base circuit and one end of resistance R7; The other end of resistance R7 connects power module.
Further, described giant magneto-resistance sensor is made up of the giant magnetoresistance of 4 same materials, and 4 giant magnetoresistances are respectively resistance R3, resistance R4, resistance R5 and resistance R3, and wherein resistance R3 and resistance R6 is reference resistance, and resistance R4 and resistance R5 is inductive reactance; Reference resistance R3 and R6 is sealed; One termination power of resistance R3 and resistance R4, another termination of resistance R3 is connected the positive input terminal of voltage comparator with one end of resistance R5, the negative input end of the other end of resistance R4 and a termination voltage comparator of resistance R6, the other end of resistance R5 and the other end ground connection of resistance R6.
Further, described voltage comparator is LM393 voltage comparator.
Further, described relay circuit comprises relay coil, normally opened contact, normally-closed contact, change over switch QS and diode D7; One end of relay coil connects the output of voltage comparator, and the other end connects the output of power module; One end of normally opened contact connects the positive pole of jack L2A and diode D7; The other end of normally opened contact connects jack L2C, and one end of normally-closed contact connects the positive pole of jack L2A and diode D7, and the other end of normally-closed contact connects jack L2B; One end of change over switch QS connects the negative pole of diode D7, and the other end connects jack L2B.
Beneficial effect of the present invention: control system of the present invention comprises power module, 555 timer pulse circuit, coil, giant magneto-resistance sensor, voltage comparator, relay circuit.Root control system of the present invention has the function of antistatic, when electric iron is placed on Iron Stand, electric iron electrified regulation, when electric iron is taken away from Iron Stand, electric iron auto-breaking, electric iron utilizes waste heat to weld, and effectively prevent the damage of electrostatic to soldered element, does not need again user of service's plug electric iron repeatedly.Control system of the present invention also has energy-conservation function, and when electric iron is placed on Iron Stand, electric iron heat-retaining electricity-saving state, when electric iron is taken away from Iron Stand, electric iron normally works.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is the circuit diagram of power module of the present invention.
Fig. 3 is the circuit diagram of 555 timer pulse circuit of invention.
Fig. 4 is the circuit diagram of coil of the present invention.
Fig. 5 is the circuit diagram of giant magneto-resistance sensor of the present invention.
Fig. 6 is the circuit diagram of contact circuit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is elaborated.
As the control system that Fig. 1-6 is a kind of Multifunctional iron frame of the present invention, comprise power module, 555 timer pulse circuit, coil, giant magneto-resistance sensor, LM393 voltage comparator and relay circuit; Voltage conversion circuit is used for 220V alternating current to be converted to 5V direct current; The input of 555 timer pulse circuit is connected with the output of power module, for 5V direct current being converted to the square-wave voltage of a certain frequency, to be adjusted frequency size by rheostat; Coil is by enamelled wire around on the groove hollow backbone of Iron Stand, and one end of coil is connected with the output of 555 timer pulse circuit, other end ground connection; When square-wave voltage is by coil, produces periodically variable electric current in coil, make to produce alternating magnetic field around; Giant magneto-resistance sensor is arranged at and is close to coil plane center, and giant magneto-resistance sensor is connected with 555 timer pulse circuit output ends, and change changes of magnetic field being converted to voltage signal exports; The input of LM393 voltage comparator is connected with giant magneto-resistance sensor, and after the change of giant magneto-resistance sensor output voltage, LM393 voltage comparator output level overturns; Relay circuit input connects with the output of voltage comparator, and the other end connects the output of power module.
Power module is made up of transformer TC, rectification circuit and 7805 pressurizers; The output of transformer TC connects the rectification circuit be made up of diode D1, diode D2, diode D3 and diode D4; Transformer TC output while be connected with the positive pole of diode D1 and the negative pole of diode D2, positive pole and the D4 negative pole of another side and diode D3 are connected; The negative pole of diode D1 is connected with the negative pole of diode D3; The filter circuit be made up of electric capacity C1 and electric capacity C2 is provided with between rectification circuit and 7805 described pressurizers; One pole of electric capacity C1 is connected with a pole of the negative pole of diode D3, electric capacity C2 and the input of 7805 pressurizers; Another pole of electric capacity C1 is ground connection together with another pole of the positive pole of diode D4, electric capacity C2 and the earth terminal of 7805 pressurizers; The output of 7805 pressurizers is connected with the input of the filter circuit be made up of with electric capacity C4 electric capacity C3 and 555 timer pulse circuit.
555 timer pulse circuit are made up of ne555 time-base circuit, resistance R1, resistance R2, electric capacity D5, electric capacity D6, electric capacity C5 and electric capacity C6; 1 pin GND ground connection of ne555 time-base circuit; 4 pin MR of ne555 time-base circuit and 8 pin VDD connect the output of power module; 3 pin V0 of ne555 time-base circuit are output, export square-wave voltage; 5 pin Vc of ne555 time-base circuit connect one end of electric capacity C5, the other end ground connection of electric capacity C5; 2 pin TR of ne555 time-base circuit are connected with 6 pin TH and are connected with one end of electric capacity C6 and the lever arm of slide rheostat Rp1 afterwards; The other end ground connection of electric capacity C6; One end of one end contact resistance R1 of slide rheostat Rp1, the other end connects the negative pole of diode D5, and the positive pole of diode D5 connects 7 pin DIS of ne555 time-base circuit and one end of resistance R7; The other end of resistance R1 connects the positive pole of diode D6; The negative pole of diode D6 connects 7 pin DIS of ne555 time-base circuit and one end of resistance R7; The other end of resistance R7 connects power module.
Giant magneto-resistance sensor is made up of the giant magnetoresistance of 4 same materials, 4 giant magnetoresistances are respectively resistance R3, resistance R4, resistance R5 and resistance R3, wherein resistance R3 and resistance R6 is reference resistance, resistance R4 and resistance R5 is inductive reactance, reference resistance R3 and R6 is sealed, itself and external magnetic field are isolated, and resistance can not change because of the change of external magnetic field; One termination power of resistance R3 and resistance R4, another termination of resistance R3 is connected the positive input terminal of voltage comparator with one end of resistance R5, the negative input end of the other end of resistance R4 and a termination voltage comparator of resistance R6, the other end of resistance R5 and the other end ground connection of resistance R6.When apply coil produce external magnetic field time, the resistance of inductive reactance R4 and R5 can change along with the change of external magnetic field, and reference resistance R3 and R6 resistance constant, cause electric bridge disequilibrium, changes of magnetic field be converted to voltage signal change export.
When electric iron is placed on Iron Stand, its electric soldering bit is in the variation magnetic field of coil generation, thus produces current vortex at electric soldering bit, and the magnetic field that current vortex produces makes again the magnetic field intensity around coil there occurs change.Giant magneto-resistance sensor detects the change in its magnetic field, and its output voltage changes.
After LM393 voltage comparator detects the change of giant magneto-resistance sensor output voltage, output level overturns.
Relay circuit comprises relay coil, normally opened contact 2, normally-closed contact 3, change over switch QS and diode D7; One end of relay coil connects the output of voltage comparator, and the other end connects the output of power module; One end of normally opened contact 2 connects the positive pole of jack L2A and diode D7; The other end of normally opened contact 2 connects jack L2C, and one end of normally-closed contact 3 connects the positive pole of jack L2A and diode D7, and the other end of normally-closed contact 3 connects jack L2B; One end of change over switch QS connects the negative pole of diode D7, and the other end connects jack L2B.
The break-make of LM393 voltage comparator output signal control relay KA, the break-make of relay K A realizes the controlling functions of Multifunctional iron frame, thus makes common electric iron also can have antistatic and energy-conservation function:
In use, Multifunctional iron frame is by L1A, L2A incoming transport 220V voltage for Multifunctional iron frame.
When needs have electrostatic-proof function, the plug of electric iron inserts L1C, L2C jack, realizes the connection with L1C, L2C.When electric iron is placed on Iron Stand, giant magneto-resistance sensor detects the changes of magnetic field that electric soldering bit causes, output voltage changes, voltage comparator detects the change of its voltage, output signal control relay circuit, closing of relay normally open contact 2, the connection of realizing circuit, electric iron electrified regulation.When electric iron is taken away from Iron Stand, relay normally open contact 2 disconnects, electric iron auto-breaking, and electric iron utilizes waste heat to weld, and effectively prevent the damage of electrostatic to soldered element, does not need again user of service's plug electric iron repeatedly.
When needs are energy-conservation, the plug of electric iron inserts L1B, L2B jack, realizes the connection with L1B, L2B.When electric iron is placed on Iron Stand, relay normally-closed contact 3 disconnects.If relay normally-closed contact 3 disconnects, and when change over switch QS closes, electric current is by rectifier diode D7, and becoming halfwave rectifier powers, and at this moment electric iron only consumes the half of former power, is in heat-retaining electricity-saving state.If relay normally-closed contact 3 disconnects, and when change over switch QS disconnects, circuitry cuts, electric iron power-off, this relatively more applicable high-power rapid-heating type electric iron, when the power is restored, can heat rapidly.When electric iron is taken away from Iron Stand, relay normally-closed contact 3 recovers closed, and electric iron normal power-up works.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (6)
1. a control system for Multifunctional iron frame, is characterized in that: comprise power module, 555 timer pulse circuit, coil, giant magneto-resistance sensor, voltage comparator, relay circuit;
Described voltage conversion circuit is used for 220V alternating current to be converted to 5V direct current;
The input of 555 described timer pulse circuit is connected with the output of power module, for 5V direct current being converted to the square-wave voltage of a certain frequency, to be adjusted frequency size by rheostat;
Described coil is by enamelled wire around on the groove hollow backbone of Iron Stand, and one end of coil is connected with the output of 555 timer pulse circuit, other end ground connection; When square-wave voltage is by coil, produces periodically variable electric current in coil, make to produce alternating magnetic field around;
Described giant magneto-resistance sensor is arranged at and is close to coil plane center, and giant magneto-resistance sensor is connected with 555 timer pulse circuit output ends, and change changes of magnetic field being converted to voltage signal exports;
The input of described voltage comparator is connected with giant magneto-resistance sensor, and after the change of giant magneto-resistance sensor output voltage, voltage comparator output level overturns;
Relay circuit input connects with the output of voltage comparator, and the other end connects the output of power module, the break-make of voltage comparator output signal control relay circuit.
2. the control system of a kind of Multifunctional iron frame according to claim 1, is characterized in that: described power module is made up of transformer TC, rectification circuit and 7805 pressurizers; The output of described transformer TC connects the rectification circuit be made up of diode D1, diode D2, diode D3 and diode D4; Transformer TC output while be connected with the positive pole of diode D1 and the negative pole of diode D2, positive pole and the D4 negative pole of another side and diode D3 are connected; The negative pole of diode D1 is connected with the negative pole of diode D3; The filter circuit be made up of electric capacity C1 and electric capacity C2 is provided with between described rectification circuit and 7805 described pressurizers; One pole of electric capacity C1 is connected with a pole of the negative pole of diode D3, electric capacity C2 and the input of 7805 pressurizers; Another pole of electric capacity C1 is ground connection together with another pole of the positive pole of diode D4, electric capacity C2 and the earth terminal of 7805 pressurizers; The output of 7805 described pressurizers is connected with the input of the filter circuit be made up of with electric capacity C4 electric capacity C3 and 555 timer pulse circuit.
3. the control system of a kind of Multifunctional iron frame according to claim 1, is characterized in that: 555 described timer pulse circuit are made up of ne555 time-base circuit, resistance R1, resistance R2, electric capacity D5, electric capacity D6, electric capacity C5 and electric capacity C6; 1 pin GND ground connection of ne555 time-base circuit; 4 pin MR of ne555 time-base circuit and 8 pin VDD connect the output of power module; 3 pin V0 of ne555 time-base circuit are output, export square-wave voltage; 5 pin Vc of ne555 time-base circuit connect one end of electric capacity C5, the other end ground connection of electric capacity C5; 2 pin TR of ne555 time-base circuit are connected with 6 pin TH and are connected with one end of electric capacity C6 and the lever arm of slide rheostat Rp1 afterwards; The other end ground connection of electric capacity C6; One end of one end contact resistance R1 of described slide rheostat Rp1, the other end connects the negative pole of diode D5, and the positive pole of diode D5 connects 7 pin DIS of ne555 time-base circuit and one end of resistance R7; The other end of resistance R1 connects the positive pole of diode D6; The negative pole of diode D6 connects 7 pin DIS of ne555 time-base circuit and one end of resistance R7; The other end of resistance R7 connects power module.
4. the control system of a kind of Multifunctional iron frame according to claim 1, it is characterized in that: described giant magneto-resistance sensor is made up of the giant magnetoresistance of 4 same materials, 4 giant magnetoresistances are respectively resistance R3, resistance R4, resistance R5 and resistance R3, wherein resistance R3 and resistance R6 is reference resistance, and resistance R4 and resistance R5 is inductive reactance; Reference resistance R3 and R6 is sealed; One termination power of resistance R3 and resistance R4, another termination of resistance R3 is connected the positive input terminal of voltage comparator with one end of resistance R5, the negative input end of the other end of resistance R4 and a termination voltage comparator of resistance R6, the other end of resistance R5 and the other end ground connection of resistance R6.
5. the control system of a kind of Multifunctional iron frame according to claim 1 or 4, is characterized in that: described voltage comparator is LM393 voltage comparator.
6. the control system of a kind of Multifunctional iron frame according to claim 1, is characterized in that: described relay circuit comprises relay coil, normally opened contact, normally-closed contact, change over switch QS and diode D7; One end of relay coil connects the output of voltage comparator, and the other end connects the output of power module; One end of normally opened contact connects the positive pole of jack L2A and diode D7; The other end of normally opened contact connects jack L2C, and one end of normally-closed contact connects the positive pole of jack L2A and diode D7, and the other end of normally-closed contact connects jack L2B; One end of change over switch QS connects the negative pole of diode D7, and the other end connects jack L2B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401646.0U CN204836757U (en) | 2015-06-12 | 2015-06-12 | Control system of multi -functional flatiron frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520401646.0U CN204836757U (en) | 2015-06-12 | 2015-06-12 | Control system of multi -functional flatiron frame |
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| CN204836757U true CN204836757U (en) | 2015-12-02 |
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| CN201520401646.0U Expired - Fee Related CN204836757U (en) | 2015-06-12 | 2015-06-12 | Control system of multi -functional flatiron frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105025646A (en) * | 2015-06-12 | 2015-11-04 | 南京铁道职业技术学院 | Control system for multifunctional iron stand |
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2015
- 2015-06-12 CN CN201520401646.0U patent/CN204836757U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105025646A (en) * | 2015-06-12 | 2015-11-04 | 南京铁道职业技术学院 | Control system for multifunctional iron stand |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160612 |