CN103949744A - Instantaneous temperature control electric iron - Google Patents
Instantaneous temperature control electric iron Download PDFInfo
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- CN103949744A CN103949744A CN201410018456.0A CN201410018456A CN103949744A CN 103949744 A CN103949744 A CN 103949744A CN 201410018456 A CN201410018456 A CN 201410018456A CN 103949744 A CN103949744 A CN 103949744A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 204
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 86
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 20
- 238000005476 soldering Methods 0.000 claims description 52
- 239000004065 semiconductor Substances 0.000 claims description 27
- 230000000087 stabilizing effect Effects 0.000 claims description 18
- 239000003381 stabilizer Substances 0.000 claims description 16
- 230000033228 biological regulation Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 description 35
- 229910000679 solder Inorganic materials 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 241001083492 Trapa Species 0.000 description 1
- 235000014364 Trapa natans Nutrition 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 235000009165 saligot Nutrition 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/02—Soldering irons; Bits
- B23K3/03—Soldering irons; Bits electrically heated
- B23K3/033—Soldering irons; Bits electrically heated comprising means for controlling or selecting the temperature or power
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention provides an instantaneous temperature control electric iron. The instantaneous temperature control electric iron comprises an iron core embedded with a thermocouple; the temperature control electric iron also comprises a voltage comparison module, a signal detection module and an output control module, wherein the voltage comparison module comprises a first operational amplifier and a second operational amplifier and is used for comparing input voltage between two input ends of the first operational amplifier and input voltage between two input ends of the second operational amplifier; the signal detection module is used for detecting a level signal of the thermocouple, which is adjusted through one input end of the first operational amplifier at the specified welding temperature and detecting a level signal of the thermocouple passing through the other input end of the first operational amplifier; the output control module is used for controlling the on or off of the temperature control electric iron. The temperature control electric iron solves the problems that a common electric iron easily leaks electricity, is short in service life, long in preheating time and limited to using places and the like. Moreover, the temperature control electric iron has the advantages of flexible power supply mode, wide temperature adjusting range, quick heating, quick temperature compensation, sensitive temperature control and the like.
Description
Technical field
The invention belongs to electric-heating technology field, relate to a kind of electric iron, particularly relate to a kind of quick-heating type temperature control electric soldering iron.
Background technology
Along with the development of modern science and technology, the making rapid progress of electronic technology, electronic equipment and our life contact more and more tightr.In the installation and maintenance process of electronic equipment, often to carry out sealing-off, welding to electrical equipment and wire.Therefore, electric iron is the essential tool that electronic devices and components are made and keeped in repair, and electric iron in the market, is divided into inner heating type electric iron and external heated electric iron according to structure, by function, be divided into welding electric iron and inhale tin electric iron, by purposes, being divided into high-power electric soldering iron and small power electric flatiron.While using electric iron, the temperature of flatiron is too low does not dissolve scolding tin, or solder joint can not be dissolved completely and affects welding effect, and the too high electric iron that can make again of the temperature of flatiron " is burnt to death ".As can be seen here, soldering of electronic components is very high to the temperature control requirement of electric iron.
At present, market mainstream electric iron adopts 220V power supply, and electronic equipment belongs to weak current equipment, easily causes electronic component to puncture in welding process; If require in addition outdoor study, and operation place is without 220V power supply, cannot construct; Common electric iron temperature can not regulate, and to the welding temperature of different elements, can not suit measures to local conditions, and easily causes the phenomenons such as thermal breakdown and rosin joint; Common electric iron heats up generally slow, and iron core adopts Resistant heating, and service life is short, easily causes solder horn oxidation.To sum up, the electric iron of domestic market sales mainly contains following shortcoming:
1, security performance is low, easily leaks electricity, causes electronic component to puncture with people and get an electric shock;
2, service life short, iron core generally adopts resistance wire heating, works long hours and easily blows;
3, can not temperature adjustment, only have a kind of temperature, when the different electronic component of welding, welding quality cannot guarantee;
4, can only use 220V alternating current, if, without 220V power supply, cannot work in construction site, outdoor construction is restricted.
5, heating is slow, and general preheating needs 6-10 minute, but long-time heating makes solder horn oxidation and do not hang tin.
6, can not change solder horn, for different welding, need, prepare difform electric iron.
Therefore, the variety of problems existing for electric iron on market, is badly in need of a kind of electric iron that can simultaneously address these problems to increase work efficiency and the object of welding quality.
Summary of the invention
The shortcoming of prior art, the object of the present invention is to provide a kind of quick-heating type temperature control electric soldering iron in view of the above, for solving the problems such as prior art electric iron temperature-control performance is poor, job site is limited, service life is disconnected, security performance is low.
For achieving the above object and other relevant objects, the invention provides a kind of quick-heating type temperature control electric soldering iron, the iron core that comprises built-in thermoelectric idol, described temperature control electric soldering iron also comprises: voltage comparison module, comprise the first operational amplifier and the second operational amplifier, described the first operational amplifier is connected by a commutation diode with described the second operational amplifier; Described voltage comparison module is for the input voltage between two inputs of more described the first operational amplifier, and the input voltage between two inputs of described the second operational amplifier; Signal detection module, be connected with described voltage comparison module, the level signal regulating by described the first operational amplifier one input under regulation welding temperature for detection of described thermocouple, and detect described thermocouple by the level signal of described first another input of operational amplifier; Voltage stabilizing module, is connected with described voltage comparison module, for stablizing the output voltage of described temperature control electric soldering iron; Control output module, be connected with described Voltage stabilizing module, for controlling unlatching or the disconnection of described temperature control electric soldering iron;
Preferably, described temperature control electric soldering iron also comprises power module, and described power module is connected with described control output module, for providing power supply to described temperature control electric soldering iron.
Preferably, whether whether first output that relatively determines by the second input in described the first operational amplifier and the 3rd input level signal overturns, and overturn by the 7th output that relatively determines of the 5th input in described the second operational amplifier and the 6th input level signal.
Preferably, described the second input input high level, the 3rd input input low level, described the first output output low level; Described the second input low level, the 3rd input input high level, described the first output output high level; Described the 5th input input low level, the 6th input input high level, described the 7th output output low level; Described the 5th input input high level, the 6th input input low level, described the 7th output output high level.
Preferably, described voltage comparison module also comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first electric capacity, the second electric capacity and commutation diode; Described signal detection module comprises the 6th resistance, the 7th resistance, the 3rd electric capacity and rheostat; Described Voltage stabilizing module comprises the first light emitting diode, the second light emitting diode, the 8th resistance, the 9th resistance, the 4th electric capacity, the 5th electric capacity and three terminal integrated voltage stabilizer; Described control output module comprises the tenth resistance, the 11 resistance, the 6th electric capacity, triode and metal-oxide-semiconductor; Described voltage comparison module is connected with the 13 resistance by the 12 resistance with described control output module.
Preferably, the first output of the first operational amplifier described in described voltage comparison module is connected with the negative pole of commutation diode, the second input of the first operational amplifier is connected with rheostatic the 3rd end in described signal detection module, and the 3rd input of the first operational amplifier is connected with one end of described the first electric capacity, the other end of described the first electric capacity is connected with one end of described the second electric capacity, the other end of described the second electric capacity is connected with the positive pole of described commutation diode, one end of described the first resistance is connected with one end of described the first electric capacity, the other end of described the first resistance is connected with one end of the 8th resistance in described Voltage stabilizing module, one end of described the second resistance is connected with the other end of described the second electric capacity, the other end of described the second resistance is connected with one end of described the 3rd resistance, the other end of described the 3rd resistance is connected with one end of the 4th resistance, the other end of described the 4th resistance is connected with the 7th output of described the second operational amplifier, the 5th input of described the second operational amplifier is connected with one end of the 5th resistance, the 6th input of described the second operational amplifier is connected with the positive pole of described commutation diode, the other end ground connection of described the 5th resistance.
Preferably, rheostatic first end described in described signal detection module is connected with one end of described the 6th resistance, described rheostatic the second end is connected with one end of described the 7th resistance, the other end ground connection of described the 6th resistance, the other end of described the 7th resistance is connected with the other end of the second resistance in described voltage comparison module, one end of described the 3rd electric capacity is connected with one end of described the 6th resistance, the other end ground connection of described the 3rd electric capacity.
Preferably, in described Voltage stabilizing module, the 8th resistance one end is connected with the other end of the first resistance in described voltage comparator circuit, and the other end of described the 8th resistance is connected with the positive pole of the first light emitting diode, the minus earth of described the first light emitting diode; Described the 9th one end of resistance and the output point of described three terminal integrated voltage stabilizer are connected, and the other end of described the 9th resistance is connected with the positive pole of the second light emitting diode, the minus earth of described the second light emitting diode; Described the 4th electric capacity one end is connected with the output of described three terminal integrated voltage stabilizer, the other end ground connection of described the 4th electric capacity, and the input of described three terminal integrated voltage stabilizer is connected with one end of the 5th electric capacity, the other end ground connection of described the 5th electric capacity.
Preferably, in described control output module, the emitter stage of triode is connected with one end of described the tenth resistance, the colelctor electrode of described triode is connected with one end of described the 11 resistance, and the base stage of described triode is connected with described voltage comparison module by the 12 resistance; The other end ground connection of described the tenth resistance, described the 11 other end of resistance and the source electrode of described metal-oxide-semiconductor are connected, the grid of described metal-oxide-semiconductor is connected with the colelctor electrode of described triode, and the drain electrode of described metal-oxide-semiconductor is connected with described the 6th electric capacity one end, the other end ground connection of described the 6th electric capacity.
As mentioned above, quick-heating type temperature controlled electric iron of the present invention, has following beneficial effect:
1, temperature control electric soldering iron of the present invention has solved the problems such as common electric iron easily leaks electricity, the life-span is short, preheating time is long, field of employment is limited.
2, temperature control electric soldering iron of the present invention can shorten maintenance time, improves operating efficiency, guarantees welding quality.
3, temperature control electric soldering iron of the present invention have flexible power mode, adjustable temperature range large, heat fast, mend temperature rapidly, temperature control is sensitive.
4, temperature control electric soldering iron left-hand seat of the present invention is simple, and the personnel on welding basis also can weld the solder joint of better quality, saves worry laborsaving, has dissemination.
Accompanying drawing explanation
Fig. 1 is shown as quick-heating type temperature control electric soldering iron theory structure schematic diagram of the present invention.
Fig. 2 is shown as quick-heating type temperature control electric soldering iron circuit diagram of the present invention.
Element numbers explanation
1 quick-heating type temperature control electric soldering iron
11 iron cores
12 power modules
13 voltage comparison module
14 signal detection modules
15 Voltage stabilizing modules
16 control output module
The specific embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this description.The present invention can also be implemented or be applied by the other different specific embodiment, and the every details in this description also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.It should be noted that, in the situation that not conflicting, the feature in following examples and embodiment can combine mutually.
It should be noted that, the diagram providing in following examples only illustrates basic conception of the present invention in a schematic way, satisfy and only show with assembly relevant in the present invention in graphic but not component count, shape and size drafting while implementing according to reality, during its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
The invention provides a kind of quick-heating type temperature control electric soldering iron 1, described temperature control electric soldering iron comprises the iron core 11 of built-in thermoelectric idol, refer to Fig. 1, be shown as the principle assumption diagram of quick-heating type temperature control electric soldering iron, as shown, described temperature control electric soldering iron also comprises: power module 12, voltage comparison module 13, signal detection module 14, Voltage stabilizing module 15 and control output module 16.
Refer to Fig. 2, be shown as the circuit diagram of quick-heating type temperature control electric soldering iron, as shown in the figure, wherein, voltage comparison module 13 comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the first capacitor C 1, the second capacitor C 2, the first operational amplifier U1, the second operational amplifier U2 and commutation diode D1; Described signal detection module 14 comprises the 6th resistance R 6, the 7th resistance R 7, the 3rd capacitor C 3 and rheostat RF; Described Voltage stabilizing module 15 comprises the first LED 1, the second LED 2, the 8th resistance R 8, the 9th resistance R 9, the 4th capacitor C 4, the 5th capacitor C 5 and three terminal integrated voltage stabilizer U3; Described control output module 16 comprises the tenth resistance R the 10, the 11 resistance R 11, the 6th capacitor C 6, triode Q1 and metal-oxide-semiconductor Q2; Described voltage comparison module 13 is connected with the 13 resistance R 13 by the 12 resistance R 12 with described control output module 16.
Wherein, in the present embodiment, described iron core 11 adopts T12 or the T16 low-pressure type of Japanese HAKKO to iron core, and described iron core built-in thermoelectric is even.Described iron core has Yi Shangxi, the feature such as rapid, anti-oxidant, long service life of heating up.Described iron core adopts PTC ceramic heating, therefore avoids occurring that conventional, electric-resistance silk blows the phenomenon of scrapping.Described thermocouple temperature control is sensitive, and the temperature of even blowing also can detect.
Described power module 12 is a power adapter, and it can input the direct current of 12V～24V, and in the present embodiment, described power module 12 can adopt the power adapter of notebook.If during the vehicle-mounted use of described temperature control electric soldering iron, described power module 12 can adopt the 12V dc source of cigar lighter or connect battery.Described power module 12 has two ports, and the first port is connected with the source S of metal-oxide-semiconductor in described control output module 16, the second port ground connection.Described power module 12 can adopt flexibly, can be AC power, can be also dc source, and can use vehicle power.
Described voltage comparison module 13, for the input voltage of more described temperature control electric soldering iron.In in this enforcement, described voltage comparison module 13 is a voltage comparator circuit, and this circuit comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the first capacitor C 1, the second capacitor C 2, the first operational amplifier U1, the second operational amplifier U2 and commutation diode D1; Specifically, described voltage comparison module 13 is for the second input input voltage of more described the first operational amplifier U1 and the 5th input input voltage and the 6th input input voltage of the 3rd input input voltage and more described the second operational amplifier U2, to determine whether the first output output level of described the first operational amplifier U1 and the 7th output output level of the second operational amplifier U2 overturn.When the second input input voltage of described the first operational amplifier U1 is less than the 3rd input input voltage, the first output output high level of described the first operational amplifier U1, when the second input input voltage of described the first operational amplifier U1 is greater than the 3rd input input voltage, the first output output low level of described the first operational amplifier U1; When the 5th input input voltage of described the second operational amplifier U2 is greater than the 6th input input voltage, the 7th output output high level, when the 5th input input voltage of the second computing operational amplifier U2 is less than the 6th input input voltage, the 7th output output low level.In the present embodiment, described in described voltage comparator circuit, in voltage comparison module 13, the first output of the first operational amplifier U1 is connected with the negative pole of commutation diode D1, the second input of the first operational amplifier U1 is connected with the 3rd end of rheostat RF in described signal detection module 14, and the 3rd input of the first operational amplifier U1 is connected with one end of described the first capacitor C 1, the other end of described the first capacitor C 1 is connected with one end of described the second capacitor C 2, the other end of described the second capacitor C 2 is connected with the positive pole of described commutation diode D1, one end of described the first resistance R 1 is connected with one end of described the first capacitor C 1, the other end of described the first resistance R 1 is connected with one end of the 8th resistance R 8 in described Voltage stabilizing module 15, one end of described the second resistance R 2 is connected with the other end of described the second capacitor C 2, the other end of described the second resistance R 2 is connected with one end of described the 3rd resistance R 3, the other end of described the 3rd resistance R 3 is connected with one end of the 4th resistance R 4, the other end of described the 4th resistance R 4 is connected with the 7th output of described the second operational amplifier U2, the 5th input of described the second operational amplifier U2 is connected with one end of the 5th resistance R 5, the 6th input of described the second operational amplifier U2 is connected with the positive pole of described commutation diode D1, the other end ground connection of described the 5th resistance R 5.In the present embodiment, the model that the first operational amplifier U1 and the second operational amplifier U2 adopt is LM358, and LM358 makes circuit highly stable; The model that commutation diode adopts is IN4007; The resistance of the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5 is respectively 10K, 2M, 10K, 10K, 10K ohm; The first capacitor C 1 and the second capacitor C 2 adopt respectively 0.01 μ F and 0.1uF.
Described signal detection module 14 is connected with described voltage comparison module 13, level signal for detection of the second input adjusting by described the first operational amplifier U1 under regulation welding temperature of the built-in thermocouple of described iron core 11, and detect described thermocouple by the level signal of described the first operational amplifier U1 the 3rd input, in other words, be exactly for detection of the second input of the first operational amplifier U1, to regulate the magnitude of voltage of thermocouple signal under set point of temperature, and detect described thermocouple and import into the magnitude of voltage of the signal of the 3rd input of the first operational amplifier U1 by the first resistance R 1, described signal detection module 14 is a signal deteching circuit, the first end of rheostat RF described in this circuit is connected with one end of described the 6th resistance R 6, the second end of described rheostat RF is connected with one end of described the 7th resistance R 7, the other end ground connection of described the 6th resistance R 6, the other end of described the 7th resistance R 7 is connected with the other end of the second resistance R 2 in described voltage comparison module 13, one end of described the 3rd capacitor C 3 is connected with one end of described the 6th resistance R 6, the other end ground connection of described the 3rd capacitor C 3, described the 6th resistance R 6 is in parallel with described the 3rd capacitor C 3.In the present embodiment, described the 6th resistance R 6, the 7th resistance R 7 adopt respectively 20 ohm, the resistance of 10K ohm; The resistance of rheostat RF is 10K ohm; The 3rd capacitor C 3 adopts 74 * 10PF.In the present embodiment, the resistance of standardsizing rheostat RF just can be adjusted the temperature of described iron core.
Described Voltage stabilizing module 15 is connected with described voltage comparison module 13, for stablizing the output voltage of described temperature control electric soldering iron 1; Described Voltage stabilizing module 15 is a mu balanced circuit, and this circuit comprises the first LED 1, the second LED 2, the 8th resistance R 8, the 9th resistance R 9, the 4th capacitor C 4, the 5th capacitor C 5 and three terminal integrated voltage stabilizer U3.In described Voltage stabilizing module 15, the 8th resistance R 8 one end are connected with the other end of the first resistance R 1 in described voltage comparator circuit 13, the other end of described the 8th resistance R 8 is connected with the positive pole of the first LED 1, the minus earth of described the first LED 1; One end of described the 9th resistance R 9 is connected with the output point of described three terminal integrated voltage stabilizer U3, and the other end of described the 9th resistance R 9 is connected with the positive pole of the second LED 2, the minus earth of described the second LED 2; Described the 4th capacitor C 4 one end are connected with the output 8 of described three terminal integrated voltage stabilizer U3, the other end ground connection of described the 4th capacitor C 4, the input 9 of described three terminal integrated voltage stabilizer U3 is connected with one end of the 5th capacitor C 5, the other end ground connection of described the 5th capacitor C 5.The 3rd end 10 of described three terminal integrated voltage stabilizer U3 is earth terminal.The first LED 1 is red light, and the second LED 2 is green light, when power module 12 supplies electrical heating to the iron core 11 in described temperature control electric soldering iron, and when red; When described temperature control electric soldering iron is during in constant temperature, green light.In the present embodiment, described three terminal integrated voltage stabilizer U3 adopts the voltage-stablizer that model is 78L05, and the resistance of the 8th resistance and the 9th resistance is respectively 3.3K ohm and 1K ohm; The 4th capacitor C 4 and the 5th capacitor C 5 are 0.1uF.
Described control output module 16 is connected with described Voltage stabilizing module 15, and described control output module 16 is connected with described voltage comparison module 13 with the 13 resistance R 13 by the 12 resistance R 12, and described control output module 16 is for controlling unlatching or the disconnection of described temperature control electric soldering iron 1; Described control output module 16 is a control output circuit, and this circuit comprises the tenth resistance R the 10, the 11 resistance R 11, the 6th capacitor C 6, triode Q1 and metal-oxide-semiconductor Q2; Wherein, the emitter E of triode Q1 is connected with one end of described the tenth resistance R 10, the colelctor electrode C of described triode Q1 is connected with one end of described the 11 resistance R 11, and the base stage B of described triode Q1 is connected with described voltage comparison module 13 by the 12 resistance R 12; The other end ground connection of described the tenth resistance R 10, the other end of described the 11 resistance R 11 is connected with the source S of described metal-oxide-semiconductor Q2, the grid G of described metal-oxide-semiconductor Q2 is connected with the colelctor electrode C of described triode Q1, the drain D of described metal-oxide-semiconductor Q2 is connected with described the 6th capacitor C 6 one end, the other end ground connection of described the 6th capacitor C 6, the base stage B of one end connecting triode Q1 of described the 12 resistance, the other end connects the 7th output of the second operational amplifier U2, the base stage B of one end connecting triode Q1 of described the 13 resistance, other end ground connection.In described voltage comparison module 13 during the 7th output output low level of the second operational amplifier U2, triode Q1 cut-off, the grid G output high level of metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q2 conducting, drain D place does not have voltage; When the 7th output of described the second operational amplifier U2 is exported high level, triode Q1 saturation conduction, the grid G output low level of metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q2 cut-off, drain D and source S are connected to electric iron and are powered.In the present embodiment, the resistance of described the tenth resistance R 10 and the 11 resistance R 11 is 510 ohm and 10K ohm; The 6th capacitor C 6 is 0.1uF; Triode Q1 adopts the triode of 2N551 model, and the model of metal-oxide-semiconductor Q2 is TPC8107.Model is the metal-oxide-semiconductor of TPC8107, and internal resistance is very little, during circuit working, can effectively reduce the heat that metal-oxide-semiconductor sends.
One end of the iron core 11 of described temperature control electric soldering iron is connected with drain D in metal-oxide-semiconductor Q2 in described control output module 16, the other end ground connection of iron core 11.
The operation principle of a kind of quick-heating type temperature control electric soldering iron provided by the invention is as follows:
Metal-oxide-semiconductor Q2 in described control output module 16 controls unlatching or the disconnection of described electric iron, power on, when electric iron starts to heat, described three terminal integrated voltage stabilizer work, the second LED 2 green lights, the 3rd input input voltage of described the first operational amplifier U1 is low level, the second input input voltage is high level, the first output output voltage is low level, the 6th input input voltage of the second operational amplifier U2 is low level, the 5th input input voltage is high level, the 7th output output voltage is high level, commutation diode D1 saturation conduction, the voltage of the colelctor electrode C of diode D1 pulls into low level by under high level, metal-oxide-semiconductor conducting, grid G is connected source S, power module 11 is switched on to iron core, the iron core of electric iron starts to heat up, the second LED 2 is bright, when red.Rising along with iron core temperature, the thermocouple resistance being built in described iron core increases gradually, the 3rd input input voltage of the first operational amplifier U1 raises, through described voltage comparison module 13 relatively, when the 3rd input input voltage of described the first operational amplifier U1 is greater than the second input input voltage, described the first computing side but the first output output voltage of U1 begin turning as output high level, commutation diode D1 oppositely cut-off isolates the high level of the first output output, the 6th input of described the second operational amplifier U2 slowly charges to the second capacitor C 2 by the second resistance R 2, time delay is to the 6th input input voltage of described the second operational amplifier U2 during higher than the 5th input input voltage, the 7th output output voltage upset is low level, triode Q1 cut-off, the grid G output high level of metal-oxide-semiconductor Q2 disconnects source S, described power module 12 stops to described iron core 11 power supplies.Once metal-oxide-semiconductor Q2 cut-off, power module 12 is stopped power supply, the 3rd input input voltage of described the first operational amplifier U1 will become rapidly low level, now the low level signal of the 3rd input input is actually the signal voltage of the thermocouple transmitting by the first resistance R 1 from described iron core 11, if the signal voltage of described thermocouple is during also lower than the input voltage of the second preset input, circuit state is low level by the 3rd input input voltage that repeats described the first operational amplifier U1, the second input input voltage is high level, the first output output voltage is low level, the 6th input input voltage of the second operational amplifier U2 is low level, the 5th input input voltage is high level, the 7th output output voltage is high level, commutation diode D1 saturation conduction, the voltage of the colelctor electrode C of diode D1 pulls into low level by under high level, metal-oxide-semiconductor conducting, grid G is connected source S, power module 11 is to the duty of iron core energising circulation always.If the signal voltage of described thermocouple is during higher than the input voltage of the second preset input, the temperature that means the iron core of electric iron has reached preset value, the first output output voltage of the first operational amplifier U1 can not overturn, green light indication heating finishes, the temperature of iron core starts to decline, voltage in the second resistance R 2 is reduced under input voltage preset of the second input of described the first operational amplifier U1 again, the first operational amplifier U1 overturns again as iron core 11 power supplies, and this can make described iron core keep temperature constant state.The described temperature control electric soldering iron providing at the present embodiment be take pulse mode as iron core 11 power supplies, wherein, pulse width depends on described the second operational amplifier U2 the 6th input that the second resistance R 2 is to the speed of the second capacitor C 2 chargings, pulse spacing depends on that the electric charge of the first capacitor C 1 on the 3rd input of described the first operational amplifier U1 is through the rate of release of the heating wire of the first resistance R 1 and described iron core 11, at this pulse spacing circuit, can detect the signal voltage of thermocouple to determine whether this proceeds pulse power supply, thereby keep solder horn temperature constant state.
The present invention the experiment proved that the continuous adjusting that can realize temperature between 180 degrees Celsius-450 degrees Celsius, is applicable to the welding of the components and parts of different sizes; Heat fast, 6-8 seconds just can reach welding temperature, really realizes plug and play; Mend temperature rapidly, can be in the PCB of large area heat radiation welding, in unloading process, described temperature control electric soldering iron can reach the effect that moment dissolves scolding tin, the phenomenon that adopts the present invention can generating device not scald one's hand or dissolve fin.And solder horn is changed and also to be become very easy, charged hot-swappable solder horn can select tip, round end, cutter head, water chestnut head, T shape first-class.
In sum, quick-heating type temperature control electric soldering iron of the present invention has the following advantages:
1, temperature control electric soldering iron of the present invention has solved the problems such as common electric iron easily leaks electricity, the life-span is short, preheating time is long, field of employment is limited.
2, temperature control electric soldering iron of the present invention can shorten maintenance time, improves operating efficiency, guarantees welding quality.
3, temperature control electric soldering iron of the present invention have flexible power mode, adjustable temperature range large, heat fast, mend temperature rapidly, temperature control is sensitive.
4, temperature control electric soldering iron left-hand seat of the present invention is simple, and the personnel on welding basis also can weld the solder joint of better quality, saves worry laborsaving, has dissemination.
So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (9)
1. a quick-heating type temperature control electric soldering iron, comprises and it is characterized in that the iron core of built-in thermoelectric idol, and described temperature control electric soldering iron also comprises:
Voltage comparison module, comprises the first operational amplifier and the second operational amplifier, and described the first operational amplifier is connected by a commutation diode with described the second operational amplifier; Described voltage comparison module is for the input voltage between two inputs of more described the first operational amplifier, and the input voltage between two inputs of described the second operational amplifier;
Signal detection module, be connected with described voltage comparison module, the level signal regulating by described the first operational amplifier one input under regulation welding temperature for detection of described thermocouple, and detect described thermocouple by the level signal of described first another input of operational amplifier;
Voltage stabilizing module, is connected with described voltage comparison module, for stablizing the output voltage of described temperature control electric soldering iron;
Control output module, be connected with described Voltage stabilizing module, for controlling unlatching or the disconnection of described temperature control electric soldering iron.
2. quick-heating type temperature control electric soldering iron according to claim 1, is characterized in that: described temperature control electric soldering iron also comprises power module, and described power module is connected with described control output module, for providing power supply to described temperature control electric soldering iron.
3. quick-heating type temperature control electric soldering iron according to claim 1, it is characterized in that: whether first output that relatively determines by the second input in described the first operational amplifier and the 3rd input level signal overturns, and whether overturn by the 7th output that relatively determines of the 5th input in described the second operational amplifier and the 6th input level signal.
4. quick-heating type temperature control electric soldering iron according to claim 3, is characterized in that: described the second input input high level, the 3rd input input low level, described the first output output low level; Described the second input low level, the 3rd input input high level, described the first output output high level; Described the 5th input input low level, the 6th input input high level, described the 7th output output low level; Described the 5th input input high level, the 6th input input low level, described the 7th output output high level.
5. quick-heating type temperature control electric soldering iron according to claim 1, is characterized in that: described voltage comparison module also comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first electric capacity, the second electric capacity and commutation diode; Described signal detection module comprises the 6th resistance, the 7th resistance, the 3rd electric capacity and rheostat; Described Voltage stabilizing module comprises the first light emitting diode, the second light emitting diode, the 8th resistance, the 9th resistance, the 4th electric capacity, the 5th electric capacity and three terminal integrated voltage stabilizer; Described control output module comprises the tenth resistance, the 11 resistance, the 6th electric capacity, triode and metal-oxide-semiconductor; Described voltage comparison module is connected with the 13 resistance by the 12 resistance with described control output module.
6. quick-heating type temperature control electric soldering iron according to claim 5, it is characterized in that: the first output of the first operational amplifier described in described voltage comparison module is connected with the negative pole of commutation diode, the second input of the first operational amplifier is connected with rheostatic the 3rd end in described signal detection module, and the 3rd input of the first operational amplifier is connected with one end of described the first electric capacity, the other end of described the first electric capacity is connected with one end of described the second electric capacity, the other end of described the second electric capacity is connected with the positive pole of described commutation diode, one end of described the first resistance is connected with one end of described the first electric capacity, the other end of described the first resistance is connected with one end of the 8th resistance in described Voltage stabilizing module, one end of described the second resistance is connected with the other end of described the second electric capacity, the other end of described the second resistance is connected with one end of described the 3rd resistance, the other end of described the 3rd resistance is connected with one end of the 4th resistance, the other end of described the 4th resistance is connected with the 7th output of described the second operational amplifier, the 5th input of described the second operational amplifier is connected with one end of the 5th resistance, the 6th input of described the second operational amplifier is connected with the positive pole of described commutation diode, the other end ground connection of described the 5th resistance.
7. quick-heating type temperature control electric soldering iron according to claim 5, it is characterized in that: rheostatic first end described in described signal detection module is connected with one end of described the 6th resistance, described rheostatic the second end is connected with one end of described the 7th resistance, the other end ground connection of described the 6th resistance, the other end of described the 7th resistance is connected with the other end of the second resistance in described voltage comparison module, one end of described the 3rd electric capacity is connected with one end of described the 6th resistance, the other end ground connection of described the 3rd electric capacity.
8. quick-heating type temperature control electric soldering iron according to claim 5, it is characterized in that: in described Voltage stabilizing module, the 8th resistance one end is connected with the other end of the first resistance in described voltage comparator circuit, the other end of described the 8th resistance is connected with the positive pole of the first light emitting diode, the minus earth of described the first light emitting diode; Described the 9th one end of resistance and the output point of described three terminal integrated voltage stabilizer are connected, and the other end of described the 9th resistance is connected with the positive pole of the second light emitting diode, the minus earth of described the second light emitting diode; Described the 4th electric capacity one end is connected with the output of described three terminal integrated voltage stabilizer, the other end ground connection of described the 4th electric capacity, and the input of described three terminal integrated voltage stabilizer is connected with one end of the 5th electric capacity, the other end ground connection of described the 5th electric capacity.
9. quick-heating type temperature control electric soldering iron according to claim 5, it is characterized in that: in described control output module, the emitter stage of triode is connected with one end of described the tenth resistance, the colelctor electrode of described triode is connected with one end of described the 11 resistance, and the base stage of described triode is connected with described voltage comparison module by the 12 resistance; The other end ground connection of described the tenth resistance, described the 11 other end of resistance and the source electrode of described metal-oxide-semiconductor are connected, the grid of described metal-oxide-semiconductor is connected with the colelctor electrode of described triode, and the drain electrode of described metal-oxide-semiconductor is connected with described the 6th electric capacity one end, the other end ground connection of described the 6th electric capacity.
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| CN201410018456.0A CN103949744B (en) | 2014-01-15 | 2014-01-15 | A kind of quick-heating type temperature control electric soldering iron |
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| CN201410018456.0A CN103949744B (en) | 2014-01-15 | 2014-01-15 | A kind of quick-heating type temperature control electric soldering iron |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001834A (en) * | 2016-07-27 | 2016-10-12 | 深圳市唐誉科技有限公司 | Electric soldering iron control system |
| CN109807423A (en) * | 2019-02-22 | 2019-05-28 | 仝达科技（惠州）有限公司 | A kind of welding closed loop monitoring system and welding method |
| CN113894379A (en) * | 2021-11-18 | 2022-01-07 | 深圳市安泰信科技有限公司 | Constant temperature circuit for electric soldering iron and electric soldering iron |
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| JPS55112165A (en) * | 1979-02-20 | 1980-08-29 | Marcon Electronics Co Ltd | Soldering iron |
| CN101109937A (en) * | 2007-09-05 | 2008-01-23 | 南京华夏电器有限公司 | Fast heating intelligent leadless welding table controller and control method thereof |
| CN201009026Y (en) * | 2006-04-29 | 2008-01-23 | 东南大学 | Energy-saving flash-heating electric soldering iron control device |
| CN103439997A (en) * | 2013-07-09 | 2013-12-11 | 大唐湘潭发电有限责任公司 | Adjustable and thermostatic electric soldering iron control method and device |
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| JPS55112165A (en) * | 1979-02-20 | 1980-08-29 | Marcon Electronics Co Ltd | Soldering iron |
| CN201009026Y (en) * | 2006-04-29 | 2008-01-23 | 东南大学 | Energy-saving flash-heating electric soldering iron control device |
| CN101109937A (en) * | 2007-09-05 | 2008-01-23 | 南京华夏电器有限公司 | Fast heating intelligent leadless welding table controller and control method thereof |
| CN103439997A (en) * | 2013-07-09 | 2013-12-11 | 大唐湘潭发电有限责任公司 | Adjustable and thermostatic electric soldering iron control method and device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001834A (en) * | 2016-07-27 | 2016-10-12 | 深圳市唐誉科技有限公司 | Electric soldering iron control system |
| CN109807423A (en) * | 2019-02-22 | 2019-05-28 | 仝达科技（惠州）有限公司 | A kind of welding closed loop monitoring system and welding method |
| CN109807423B (en) * | 2019-02-22 | 2024-04-23 | 仝达科技（惠州）有限公司 | Welding closed-loop monitoring system and welding method |
| CN113894379A (en) * | 2021-11-18 | 2022-01-07 | 深圳市安泰信科技有限公司 | Constant temperature circuit for electric soldering iron and electric soldering iron |
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| CN103949744B (en) | 2016-10-26 |
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