CN100426170C - Energy saving electric iron - Google Patents
Energy saving electric iron Download PDFInfo
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- CN100426170C CN100426170C CNB2005100361392A CN200510036139A CN100426170C CN 100426170 C CN100426170 C CN 100426170C CN B2005100361392 A CNB2005100361392 A CN B2005100361392A CN 200510036139 A CN200510036139 A CN 200510036139A CN 100426170 C CN100426170 C CN 100426170C
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- nmos pipe
- resistance
- energy
- saving electric
- output terminal
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Abstract
The energy saving electric iron includes one soldering head, one power supply, one control chip, one resistor and one temperature controller. The power supply include one transformer, which has secondary winding with the first end connected to one end of the soldering head and the second end connected through the control chip to the other end of the soldering head. The control chip includes one signal receiving end connected through one delay switch circuit to the resistor; and the temperature controller is connected to the resistor. The energy saving electric iron has its power supply turned off automatically for saving energy after some time delaying.
Description
[technical field]
The present invention relates to a kind of electric soldering iron, particularly a kind of energy-saving electric iron.
[background technology]
Electric soldering iron is electronics when assembling one of the most frequently used instrument, is used for welding, maintenance and changes components and parts etc.Electric soldering iron has common electrical flatiron, temp .-regulating type electric soldering iron, constant temperature electric iron etc. several.When welding SMD (Surfce Mount Device, surface mount device) by hand or reprocessing SMD, require the solder horn temperature constant, otherwise can damage components and parts, even can damage multilayer board, therefore should use constant temperature electric iron in this case.
The constant temperature electric iron of prior art as shown in Figure 1, it comprises a solder horn 10 ', one power supply circuit 20 ', the control chip 30 ' of the described solder horn electric current of one control, one resistance R 8 ' and a temperature controller 40 ', described power supply circuit 20 ' comprises a transformer B1 ', in electric soldering iron when work, is at 220 volts of alternating voltages of elementary acquisition of described transformer 20 ', its secondary process transformation obtains 24 volts of alternating voltages, its secondary first end is connected with the anode of a diode D1 ', the negative electrode of described diode D1 ' is connected with secondary second end of transformer B1 ' by a capacitor C 1 ', the negative electrode of described diode D1 ' connects the negative electrode of a resistance R 7 ' and a stabilivolt D2 ' successively, the anode of described stabilivolt D2 ' is connected with secondary second end of transformer B1 ' by a capacitor C 2 ', secondary first end of described transformer B1 ' is connected with an end of described solder horn 10 ', secondary second end of described transformer B1 ' is connected with the other end of described solder horn 10 ' by described control chip 30 ', and a signal receiving end of described control chip 30 ' is connected with described temperature controller 40 ' by described resistance R 8 '.When electric soldering iron was worked, described control chip 30 ' was by the control signal of the described temperature controller 40 ' of described resistance R 8 ' reception, with this heating power that cut-offs and change electric soldering iron by the Current Control electric soldering iron of adjusting solder horn 10 '.
Electric soldering iron generally is not successional work, always has the time of resting, but this section in the period electric soldering iron still be in febrile state, this not only wastes electric energy, and can reduce the serviceable life of electric soldering iron.If powered-down immediately when not using electric soldering iron, electric soldering iron is cooling at once, when needing to use electric soldering iron again in the near future, needs preheating again, wastes electric energy equally and also is not easy to use.
[summary of the invention]
In view of foregoing, be necessary to provide a kind of energy-saving electric iron, can be in electric soldering iron automatic powered-down after obsolete a period of time, saves energy.
A kind of energy-saving electric iron, it comprises a solder horn, one power supply circuit, one control chip, one resistance R 8 and a temperature controller, described power supply circuit comprises a transformer, secondary first end of described transformer is connected with an end of described solder horn, secondary second end of described transformer is connected with the other end of described solder horn by described control chip, described control chip comprises a signal receiving end, described temperature controller is connected with described resistance R 8,8 of described signal receiving end and described resistance R are connected to a delay switch circuit, described delay switch circuit comprises a switch, when described switch disconnects, described delay switch circuit conducting, make the control signal of described temperature controller be sent to the signal receiving end of described control chip, so that electric soldering iron work, when described switch closure, in a delay time, described delay switch circuit conducting, make the control signal of described temperature controller be sent to the signal receiving end of described control chip, after surpassing described delay time, described delay switch circuit disconnects.
Compare prior art, insert a delay switch circuit between the temperature controller of described energy-saving electric iron and the control chip, the automatic powered-down of electric soldering iron after surpassing delay time has been saved electric energy.
[description of drawings]
The invention will be further described in conjunction with embodiment with reference to the accompanying drawings.
Fig. 1 is the circuit connection diagram of prior art electric soldering iron.
Fig. 2 is the circuit connection diagram of better embodiment energy-saving electric iron of the present invention.
[embodiment]
Please refer to Fig. 2, better embodiment energy-saving electric iron of the present invention comprises a solder horn 10, one power supply circuit 20, one control chip 30, one temperature controller 40, one resistance R 8 and a delay switch circuit 50, described power supply circuit 20 comprises a transformer B1, the alternating current that the secondary generation of described transformer B1 is one 24 volts, its secondary first end is connected with the anode of a diode D1, the negative electrode of described diode D1 is connected by B1 level of a capacitor C 1 and transformer second end, the negative electrode of described diode D1 connects the negative electrode of a resistance R 7 and a stabilivolt D2 successively, the anode of described stabilivolt D2 is connected by B1 level of a capacitor C 2 and transformer second end, described 24 volts of alternating voltages are by rectification, filtering, anode at stabilivolt D2 after the voltage stabilizing obtains one+5 volt of DC voltage, secondary first end of described transformer B1 is connected with an end of described solder horn 10, and secondary second end of described transformer B1 is connected with the other end of described solder horn 10 by described control chip 30.
Described delay switch circuit 50 comprises an input voltage, described input voltage can insert from the anode of described stabilivolt D2, also can provide by an outside direct voltage source, and described input voltage is generally+5 volts of DC voltage, described input voltage is connected with a capacitor C 3 by a resistance R 1 and is inserted secondary second end of described transformer B1, the two ends of described capacitor C 3 K switch that inserts in parallel, described resistance R 1 is connected with the input end of a reverser 51 with the node of described capacitor C 3, the output terminal of described reverser 51 is connected with described input voltage by a resistance R 2, the output terminal of described reverser 51 also is connected with the input end of a chronotron 52, the output terminal of described chronotron 52 is connected with described input voltage by a resistance R 3, the output terminal of described chronotron 52 also is connected with the first input end of a Sheffer stroke gate 53, second input end of described Sheffer stroke gate 53 is connected with the output terminal of described reverser 51, the output terminal of described Sheffer stroke gate 53 is connected with described input voltage by a resistance R 4, and the output terminal of described Sheffer stroke gate 53 inserts an on-off circuit simultaneously.
Described on-off circuit comprises one the one NMOS pipe M1, one the 2nd NMOS manages M2, one the 3rd a NMOS pipe M3 and a resistance R 6, the grid of described NMOS pipe M1 is connected with the output terminal of described Sheffer stroke gate 53, the drain electrode of described NMOS pipe M1 is connected with described input voltage by a resistance R 5, the drain electrode of described NMOS pipe M1 also is connected with the grid of described the 2nd NMOS pipe M2, the source electrode of described NMOS pipe M1 is connected the back with the source electrode of described the 2nd NMOS pipe M2 and inserts B1 level of described transformer second end, the drain electrode of described the 2nd NMOS pipe M2 is connected with the grid of described the 3rd NMOS pipe M3, and insert described resistance R 6 between the grid of described the 3rd NMOS pipe M3 and drain electrode, the drain electrode of described the 3rd NMOS pipe M3 and the node of described resistance R 6 insert the signal receiving end of described control chip 30, and the source electrode of described the 3rd NMOS pipe M3 is connected with described resistance R 8.
When electric soldering iron is in operate as normal, described K switch is in off-state, this moment, described reverser 51 input ends were high level, become low level at output terminal through described reverser 51 after oppositely, described low level is sent to first end of described Sheffer stroke gate 53 after 53 time-delay a period of times through described chronotron, after second input end of described Sheffer stroke gate 53 receives described low level signal, no matter at this moment how the first end level is high level in output terminal output, described high level causes described NMOS pipe M1 conducting, this moment, the drain electrode of described NMOS pipe M1 was a low level, described the 2nd NMOS pipe M2 disconnects, the drain electrode of the 2nd NMOS pipe M2 offers the grid of described the 3rd NMOS pipe M3 after moving high level on the pull-up resistor R6, the purpose that adds pull-up resistor R6 herein is because the control signal voltage sent of described temperature controller 40 approximately is about 7 volts through described resistance R 8 backs at the source electrode of described the 3rd NMOS pipe M3, and institute thinks that making described the 3rd NMOS manage the M3 conducting must manage described the 3rd NMOS on the grid level of M3 and move to more than 7 volts.Described the 3rd NMOS pipe M3 conducting this moment, the control signal of described temperature controller 40 is conveyed into the signal receiving end of described control chip 30.
Do not need to use electric soldering iron when temporarily, K closes a switch, the input end of described reverser 51 connects B1 level of described transformer second end and becomes low level, become the input end that high level is sent into described chronotron 52 through behind the reverser 51, second input end of described Sheffer stroke gate 53 receives described high level signal, this moment, first end was because delay time is not a low level to still keeping virgin state, output terminal in described Sheffer stroke gate 53 is output as high level, so according to the 3rd NMOS pipe noted earlier conducting, electric soldering iron is operate as normal still.When surpassing delay time (being assumed to be 5 minutes), when still not needing to use electric soldering iron, the high level of the input end of described chronotron 52 is sent to output terminal and is linked into the first input end of described Sheffer stroke gate 53, this moment, the output terminal of described Sheffer stroke gate 53 was low level (grid that is described NMOS pipe M1 is a low level), described NMOS pipe M1 is in off-state, drain electrode is+5 volts a high level, described high level makes described the 2nd NMOS pipe M2 conducting, the grid of then described the 3rd NMOS pipe M3 is a low level, so described the 3rd NMOS pipe M3 disconnects, the control signal of described temperature controller 40 can not be conveyed into the signal receiving end of described control chip 30, this moment control chip 30 powered-downs, electric soldering iron is not worked.If in delay time (this moment, electric soldering iron was still in running order) or surpass delay time (this moment, electric soldering iron was not worked) when needing to use electric soldering iron, disconnect described K switch, the input end of described reverser 51 becomes high level at once, described reverser 51 output terminals become low level and are conveyed into second input end of described Sheffer stroke gate 53, the output terminal of described Sheffer stroke gate 53 (being the grid of described NMOS pipe M1) becomes high level, according to the 3rd NMOS pipe M3 noted earlier conducting, electric soldering iron operate as normal.
Claims (9)
1. energy-saving electric iron, it comprises a solder horn, one power supply circuit, one control chip, one resistance R 8 and a temperature controller, described power supply circuit comprises a transformer, secondary first end of described transformer is connected with an end of described solder horn, secondary second end of described transformer is connected with the other end of described solder horn by described control chip, described control chip comprises a signal receiving end, described temperature controller is connected with described resistance R 8, it is characterized in that: 8 of described signal receiving end and described resistance R are connected to a delay switch circuit, described delay switch circuit comprises a switch, when described switch disconnects, described delay switch circuit conducting, make the control signal of described temperature controller be sent to the signal receiving end of described control chip, so that electric soldering iron work, when described switch closure, in a delay time, described delay switch circuit conducting, make the control signal of described temperature controller be sent to the signal receiving end of described control chip, after surpassing described delay time, described delay switch circuit disconnects.
2. energy-saving electric iron as claimed in claim 1, it is characterized in that: described transformer secondary output first end is connected with the anode of a diode, the negative electrode of described diode is connected with transformer secondary output second end by a capacitor C 1, the negative electrode of described diode connects the negative electrode of a resistance R 7 and a stabilivolt successively, and the anode of described stabilivolt is connected with described transformer secondary output second end by a capacitor C 2.
3. energy-saving electric iron as claimed in claim 2, it is characterized in that: described delay switch circuit also comprises an input voltage, described input voltage is connected with a capacitor C 3 by a resistance R 1 and is inserted described transformer secondary output second end, the described switch of described capacitor C 3 two ends access in parallel, described resistance R 1 is connected with the input end of a reverser with the node of capacitor C 3, the output terminal of described reverser is connected with the input end of a chronotron, the output terminal of described chronotron is connected with the first input end of a Sheffer stroke gate, and second input end of described Sheffer stroke gate is connected with the output terminal of described reverser.
4. energy-saving electric iron as claimed in claim 3, it is characterized in that: the output terminal of the output terminal of described reverser by a resistance R 2, described chronotron is connected with described input voltage respectively by a resistance R 4 by the output terminal of a resistance R 3 and described Sheffer stroke gate, and the output terminal of described Sheffer stroke gate inserts an on-off circuit.
5. energy-saving electric iron as claimed in claim 4, it is characterized in that: described on-off circuit comprises one the one NMOS pipe, one the 2nd NMOS pipe and one the 3rd NMOS pipe, the grid of a described NMOS pipe is connected with the output terminal of described Sheffer stroke gate, the drain electrode of a described NMOS pipe is connected with described input voltage by a resistance R 5, the drain electrode of a described NMOS pipe also is connected with the grid of described the 2nd NMOS pipe, the source electrode of a described NMOS pipe is connected the back and inserts described transformer secondary output second end with the source electrode of described the 2nd NMOS pipe, the drain electrode of described the 2nd NMOS pipe is connected with the grid of described the 3rd NMOS pipe.
6. energy-saving electric iron as claimed in claim 5, it is characterized in that: described on-off circuit also comprises a pull-up resistor R6, insert described pull-up resistor R6 between the grid of described the 3rd NMOS pipe and drain electrode, the node of the drain electrode of described the 3rd NMOS pipe and described pull-up resistor R6 inserts the signal receiving end of described control chip, and the source electrode of described the 3rd NMOS pipe is connected with described resistance R 8.
7. energy-saving electric iron as claimed in claim 3 is characterized in that: described input voltage is by the anode input of described stabilivolt.
8. energy-saving electric iron as claimed in claim 3 is characterized in that: described input voltage is provided by an outside direct voltage source.
9. as claim 7 or 8 described energy-saving electric irons, it is characterized in that: described input voltage is+5 volts of DC voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100361392A CN100426170C (en) | 2005-07-22 | 2005-07-22 | Energy saving electric iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100361392A CN100426170C (en) | 2005-07-22 | 2005-07-22 | Energy saving electric iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1899741A CN1899741A (en) | 2007-01-24 |
| CN100426170C true CN100426170C (en) | 2008-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100361392A Expired - Fee Related CN100426170C (en) | 2005-07-22 | 2005-07-22 | Energy saving electric iron |
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| Country | Link |
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| CN (1) | CN100426170C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104416294B (en) * | 2013-09-05 | 2016-06-15 | 信义汽车玻璃(深圳)有限公司 | A kind of bonding machine |
| CN105195848B (en) * | 2015-10-30 | 2017-04-12 | 上海电力学院 | Automatic-off infrared induction electric soldering iron |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395148A (en) * | 1971-07-13 | 1975-05-21 | Blackhawk Electronics Ltd | Temperature control of a heating element |
| DE2746097A1 (en) * | 1977-10-13 | 1979-04-26 | Ziegler Willi | Soldering iron with electronic temp. control circuit - is supplied directly from mains over resistor and switches heater current at mains zeros to reduce interference at tip |
| US4243875A (en) * | 1978-11-13 | 1981-01-06 | Chang Daniel C | Temperature control for resistance heating element |
| CN2321572Y (en) * | 1997-10-14 | 1999-06-02 | 王鹤群 | Fully automatic temp.-controlled electric soldering iron |
| CN2406764Y (en) * | 1999-07-08 | 2000-11-22 | 董一伟 | Constant temp. fast electric iron |
| CN2537502Y (en) * | 2001-11-20 | 2003-02-26 | 阎万祥 | Life prolonging protector for electric iron |
-
2005
- 2005-07-22 CN CNB2005100361392A patent/CN100426170C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395148A (en) * | 1971-07-13 | 1975-05-21 | Blackhawk Electronics Ltd | Temperature control of a heating element |
| DE2746097A1 (en) * | 1977-10-13 | 1979-04-26 | Ziegler Willi | Soldering iron with electronic temp. control circuit - is supplied directly from mains over resistor and switches heater current at mains zeros to reduce interference at tip |
| US4243875A (en) * | 1978-11-13 | 1981-01-06 | Chang Daniel C | Temperature control for resistance heating element |
| CN2321572Y (en) * | 1997-10-14 | 1999-06-02 | 王鹤群 | Fully automatic temp.-controlled electric soldering iron |
| CN2406764Y (en) * | 1999-07-08 | 2000-11-22 | 董一伟 | Constant temp. fast electric iron |
| CN2537502Y (en) * | 2001-11-20 | 2003-02-26 | 阎万祥 | Life prolonging protector for electric iron |
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| Publication number | Publication date |
|---|---|
| CN1899741A (en) | 2007-01-24 |
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Granted publication date: 20081015 Termination date: 20110722 |