CN204997202U - Portable adjustable electric iron - Google Patents
Portable adjustable electric iron Download PDFInfo
- Publication number
- CN204997202U CN204997202U CN201520654575.5U CN201520654575U CN204997202U CN 204997202 U CN204997202 U CN 204997202U CN 201520654575 U CN201520654575 U CN 201520654575U CN 204997202 U CN204997202 U CN 204997202U
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- CN
- China
- Prior art keywords
- direct current
- current transducer
- electric iron
- power
- operational amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Portable adjustable electric iron includes AC input and the AC/DC changeover switch who is connected with AC input, still includes first direct current transducer, operational amplifier and drive output stage, the electric iron still includes group battery, second direct current transducer and switch, the power input end of second direct current transducer is connected to the group battery, the power output end of second direct current transducer and the power input end of first direct current transducer are connected respectively to the both ends of switch. Adopt portable adjustable electric iron, possess adjustable, fast, the superiority such as the consumption is little, the structure is simple and convenient of generating heat of the continuation of the journey of outage back, temperature and power, can be in normal use and work under field or the non -transformer state, have good practical prospect and economic benefits on market.
Description
Technical field
The utility model belongs to electronic applications, relates to a kind of electric iron instrument, is specifically related to a kind of portable adjustable electric iron.
Background technology
Electric iron is the indispensable instrument of electronic production and electrical maintenance, main application is soldered elements and wire, inner heating type electric iron and external heated electric iron can be divided into by frame for movement, can be divided into without inhaling tin electric iron and inhaling tin formula electric iron by function, be divided into again high-power electric soldering iron and small power electric flatiron according to purposes difference.
Electric iron is made up of solder horn, iron core, shell, wooden handle, power supply lead wire, slotting first class sections.Because solder horn is arranged on inside iron core, therefore be called external heated electric iron.Iron core is the critical component of electric iron, and it is wound on abreast by heating wire on a hollow porcelain tube to form, middle mica-sheet insulation, and draws two wires and be connected with 220V AC power.
Traditional electrical flatiron is in varying environment, special situation, and traditional electric iron does not play its effect and function.Such as when power failure or do not have can not work when power supply; When immovable equipment overhauls, traditional electrical flatiron cannot carry out, and only has and patches printed line etc. by loaded down with trivial details method.
Utility model content
For overcome traditional electrical flatiron when power failure or do not have can not work when power supply; When immovable equipment overhauls, traditional electrical flatiron cannot carry out, and only has the technological deficiency patching printed line by loaded down with trivial details method, the utility model discloses a kind of portable adjustable electric iron.
Portable adjustable electric iron described in the utility model, the AC/DC changeover switch comprising ac input end and be connected with ac input end, also comprises the first direct current transducer, operational amplifier and driver output level;
Power input and the power output end of described first direct current transducer are connected the output of AC/DC changeover switch and the feeder ear of operational amplifier respectively, two inputs of described operational amplifier connect the output of driver output level and the intermediate node of adjustable resistance respectively, the two ends difference ground connection of described adjustable resistance, the power input of the first direct current transducer or power output end; The signal input part of the output termination driver output level of described operational amplifier;
Described electric iron also comprises battery pack, the second direct current transducer and switch, described battery pack connects the power input of the second direct current transducer, and the two ends of described switch connect the power output end of the second direct current transducer and the power input of the first direct current transducer respectively.
Preferably, described driver output level comprises NPN pipe, NMOS tube and collector resistance, the base stage of described NPN pipe, emitter and collector connect respectively operational amplifier output, and NMOS tube grid, described collector resistance two ends connect NPN pipe collector and AC/DC changeover switch output respectively, and source electrode and the drain electrode of described NMOS tube connect AC/DC changeover switch output and solder horn electrical input respectively.
Preferably, Zener diode is connected with between the power input of described first direct current transducer and/or power output end to ground.
Preferably, described second direct current transducer is S8254.
Preferably, described operational amplifier is LM358.
Preferably, described first direct current transducer is 78L05.
Adopt portable adjustable electric iron described in the utility model, possess the superiority such as continuation of the journey, temperature and power adjustable, heating is fast, power consumption is little, features simple structure after power-off, in the wild or normally can use under non-powered state and work, commercially there is good practical prospect and economic benefit.
Accompanying drawing explanation
Fig. 1 is a kind of detailed description of the invention schematic diagram of portable adjustable electric iron internal circuit described in the utility model, in figure, token name is called: BAT-battery pack, ACIN-ac input end, AC/DC AC/DC changeover switch, K-switch, DC/DC1-first direct current transducer, DC/DC2-second direct current transducer, R1-collector resistance, R2-adjustable resistance, AMP-operational amplifier, T-NPN pipe, M-NMOS pipe, C1-output capacitance, OUT-solder horn electrical input, in Fig. 1,5V, 12V represent the DC voltage rated value of respective nodes in this detailed description of the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Portable adjustable electric iron described in the utility model, the AC/DC changeover switch comprising ac input end and be connected with ac input end, also comprises the first direct current transducer, operational amplifier and driver output level;
Power input and the power output end of described first direct current transducer are connected the output of AC/DC changeover switch and the feeder ear of operational amplifier respectively, two inputs of described operational amplifier connect the output of driver output level and the intermediate node of adjustable resistance respectively, the two ends difference ground connection of described adjustable resistance, the power input of the first direct current transducer or power output end; The signal input part of the output termination driver output level of described operational amplifier;
Described electric iron also comprises battery pack, the second direct current transducer and switch, described battery pack connects the power input of the second direct current transducer, and the two ends of described switch connect the power output end of the second direct current transducer and the power input of the first direct current transducer respectively.
As shown in Figure 1, at ac input end ACIN place input 220V civil power, 12V direct current is converted into through AC/DC changeover switch, the power supply that 12V direct current can be used as driver output level uses, this 12V voltage also can be depressured to the direct-current working volts of operational amplifier by the first direct current transducer simultaneously, such as, 5V in detailed description of the invention shown in Fig. 1, an input of operational amplifier connects the output of driver output level, the voltage that solder horn electrical input OUT holds is sampled, control the power output of driver output level, realize stable output, another input of operational amplifier A MP connects adjustable resistance R2 as by comparative voltage signal, can by power output and the operating temperature regulating the resistance ratio of this adjustable resistance to realize regulating electric iron.
In detailed description of the invention shown in Fig. 1, driver output level comprises NPN pipe, NMOS tube and collector resistance, the base stage of described NPN pipe, emitter and collector connect respectively operational amplifier output, and NMOS tube M grid, described collector resistance two ends connect NPN pipe collector and AC/DC changeover switch output respectively, and source electrode and the drain electrode of described NMOS tube M meet AC/DC changeover switch output and solder horn electrical input OUT respectively.Such as when power be greater than analog voltage that rated value makes operational amplifier export raise time, NPN pipe T collector current increases, and the pressure drop of collector resistance R1 is increased, and NMOS tube grid reduces, and NMOS tube electric current reduces, and power output diminishes, thus realizes adjustment.
Can Zener diode be connected between the power input of described first direct current transducer and/or power output end to ground, over-voltage protecting function is realized to the voltage of two direct current pressure sides.
In detailed description of the invention shown in Fig. 1, the second direct current transducer is S8254, and operational amplifier is LM358, and described first direct current transducer is 78L05.Can parallel voltage-stabilizing electric capacity C1 between solder horn electrical input and ground.
When ACIN power-off or when not having alternating current to input, can closing switch K, now 12V direct current can utilize battery pack BAT to power to the second direct current transducer, output voltage is converted into specified 12V voltage and exports by the second direct current transducer, for the follow-up circuit such as the first direct current transducer, operational amplifier, out drive stage.
Adopt portable adjustable electric iron described in the utility model, possess the superiority such as continuation of the journey, temperature and power adjustable, heating is fast, power consumption is little, features simple structure after power-off, in the wild or normally can use under non-powered state and work, commercially there is good practical prospect and economic benefit.
Previously described is each preferred embodiment of the present utility model, preferred embodiment in each preferred embodiment is if not obviously contradictory or premised on a certain preferred embodiment, each preferred embodiment can stack combinations use arbitrarily, design parameter in described embodiment and embodiment is only the utility model proof procedure in order to clear statement utility model people, and be not used to limit scope of patent protection of the present utility model, scope of patent protection of the present utility model is still as the criterion with its claims, the equivalent structure change that every utilization description of the present utility model and accompanying drawing content are done, in like manner all should be included in protection domain of the present utility model.
Claims (6)
1. portable adjustable electric iron, the AC/DC changeover switch comprising ac input end and be connected with ac input end, is characterized in that, also comprises the first direct current transducer, operational amplifier and driver output level;
Power input and the power output end of described first direct current transducer are connected the output of AC/DC changeover switch and the feeder ear of operational amplifier respectively, two inputs of described operational amplifier connect the output of driver output level and the intermediate node of adjustable resistance respectively, the two ends difference ground connection of described adjustable resistance, the power input of the first direct current transducer or power output end; The signal input part of the output termination driver output level of described operational amplifier;
Described electric iron also comprises battery pack, the second direct current transducer and switch, described battery pack connects the power input of the second direct current transducer, and the two ends of described switch connect the power output end of the second direct current transducer and the power input of the first direct current transducer respectively.
2. portable adjustable electric iron as claimed in claim 1, it is characterized in that, described driver output level comprises NPN pipe, NMOS tube and collector resistance, the base stage of described NPN pipe, emitter and collector connect respectively operational amplifier output, and NMOS tube grid, described collector resistance two ends connect NPN pipe collector and AC/DC changeover switch output respectively, and source electrode and the drain electrode of described NMOS tube connect AC/DC changeover switch output and solder horn electrical input respectively.
3. portable adjustable electric iron as claimed in claim 1, is characterized in that, be connected with Zener diode between the power input of described first direct current transducer and/or power output end to ground.
4. portable adjustable electric iron as claimed in claim 1, it is characterized in that, described second direct current transducer is S8254.
5. portable adjustable electric iron as claimed in claim 1, it is characterized in that, described operational amplifier is LM358.
6. portable adjustable electric iron as claimed in claim 1, it is characterized in that, described first direct current transducer is 78L05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654575.5U CN204997202U (en) | 2015-08-28 | 2015-08-28 | Portable adjustable electric iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654575.5U CN204997202U (en) | 2015-08-28 | 2015-08-28 | Portable adjustable electric iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204997202U true CN204997202U (en) | 2016-01-27 |
Family
ID=55154107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520654575.5U Expired - Fee Related CN204997202U (en) | 2015-08-28 | 2015-08-28 | Portable adjustable electric iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204997202U (en) |
-
2015
- 2015-08-28 CN CN201520654575.5U patent/CN204997202U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Fang Chuan Inventor after: Xiang Juncheng Inventor after: Dong Wenchun Inventor after: He Dengxu Inventor before: Fang Chuan |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20160828 |