CN101992334B - Automatic protective system of electric soldering iron - Google Patents
Automatic protective system of electric soldering iron Download PDFInfo
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- CN101992334B CN101992334B CN200910305843.1A CN200910305843A CN101992334B CN 101992334 B CN101992334 B CN 101992334B CN 200910305843 A CN200910305843 A CN 200910305843A CN 101992334 B CN101992334 B CN 101992334B
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Abstract
The invention provides an automatic protective system of an electric soldering iron. The automatic protective system comprises a magnet, an automatic protective circuit, a magnetic induction circuit, a control circuit, a time-lag relay device and a heating device, wherein the magnet is arranged on an electric soldering iron bracket; the automatic protective circuit is arranged on a circuit board in the electric soldering iron and comprises a power circuit; the magnetic induction circuit is electrically connected with the power circuit; the control circuit is electrically connected with the magnetic induction circuit and the power circuit respectively; the time-lag relay device is electrically connected with the control circuit and the power circuit respectively; and the heating device is electrically connected with the time-lag relay device. Thus, the electric soldering iron is placed on the bracket after use, the magnetic induction circuit has a induced magnetic field and sends a sensing signal to the control circuit, and the control circuit controls the time-lag relay device to disconnect within a certain period of time, thus stopping heating the head of the electric soldering iron so as to realize the aim of automatic protection.
Description
[technical field]
The present invention relates to a kind of field of electric iron, particularly about a kind of automatic protective system of electric iron.
[background technology]
Once after the energising of common electric iron, heating tube will be always in "on" position, and actual welding time much smaller than conduction time, because continue again apolegamy element or looking up the fault etc. after welding what a element, so not only caused the waste of the energy but also easily because the long-time continuous high temperature of electric iron is difficult for tining, to welding, brought difficulty, above defect is unreasonable the causing of present structure of electric iron design all.Also some improvement have been there are at present, for example representative: the Chinese patent that the patent No. of announcing on May 26th, 1999 is 97248086.2, the Chinese patent that the patent No. of announcing on August 18th, 1999 is 98217158.7 has all been announced electric iron that can be energy-conservation, if certain hour is deenergization less than using in electric iron galvanization.
Yet, in the disclosed technical scheme of above-mentioned patent, be all by a hand push button, to control the switch of power supply, this way has not only increased extra operational motion, and may, because think that the carelessness two of operation forgets deenergization, cannot reach the object of real saving electric energy.
[summary of the invention]
In view of this, the object of the present invention is to provide a kind of automatic protective system of electric iron, thereby make electric iron automatic cut-off power after out-of-work certain hour.
For achieving the above object, the invention provides a kind of automatic protective system of electric iron, it comprises:
A magnet, it is located on the support of an electric iron;
An automatic protection circuit, it is located on the interior circuit board of electric iron, and it comprises a power circuit; A magnetic conduction circuitry, itself and above-mentioned power circuit are electrically connected; A control circuit, it is electrically connected with above-mentioned magnetic conduction circuitry, power circuit respectively; A time delay relay system, it is electrically connected with above-mentioned control circuit, power circuit respectively; A heater, itself and above-mentioned time delay relay system are electrically connected.
Thus; this automatic protective system is put in electric iron on above-mentioned support after opening; above-mentioned magnetic conduction circuitry induction has a magnetic field; above-mentioned magnetic conduction circuitry sends an induced signal to above-mentioned control circuit; above-mentioned control circuit is controlled above-mentioned time delay relay system and is disconnected in certain hour; make electric soldering bit stop heating, thereby reach the object of automatic protection.
Compared to prior art, automatic protective system of electric soldering iron provided by the present invention, makes electric iron automatic cut-off power after out-of-work certain hour, thereby reaches the object of real saving electric energy.
[accompanying drawing explanation]
Fig. 1 is the frame principle figure of the automatic protection circuit of automatic protective system of electric soldering iron of the present invention.
Fig. 2 is the circuit theory diagrams of the automatic protection circuit of automatic protective system of electric soldering iron of the present invention.
Fig. 3 is the perspective view of automatic protective system of electric soldering iron of the present invention.
[specific embodiment]
Refer to the frame principle figure of the automatic protection circuit of Fig. 1 automatic protective system of electric soldering iron of the present invention, the circuit theory diagrams of the automatic protection circuit of Fig. 2 automatic protective system of electric soldering iron of the present invention, shown in the perspective view of Fig. 3 automatic protective system of electric soldering iron of the present invention; the automatic protective system of this electric iron, it comprises:
A magnet 6, it is located on the support 7 of an electric iron;
An automatic protection circuit (Fig. 2), it is located on the interior circuit board of electric iron, and it comprises:
A power circuit 1, this power circuit 1 comprises a rectifier 10, itself and a 220V alternating voltage are electrically connected, and by the processing of above-mentioned rectifier 10, above-mentioned 220V alternating voltage are changed into a 12V DC voltage; A SOT223 integrated circuit, itself and above-mentioned rectifier 10 is electrically connected, and the processing by this SOT223 integrated circuit changes into 3V DC voltage by above-mentioned 12V DC voltage;
A magnetic conduction circuitry 2, itself and above-mentioned power circuit 1 are electrically connected, and it comprises a SOT23N integrated circuit, and its voltage input end and above-mentioned 3V DC voltage are electrically connected, its earth terminal ground connection;
A control circuit 3, it is electrically connected with above-mentioned magnetic conduction circuitry 2, power circuit 1 respectively, this control circuit 3 comprises an interrupteur SW 2, this interrupteur SW 2 comprises first stitch 30, one the second stitch 31, the 3rd stitch 32, and above-mentioned the second stitch 32 is electrically connected with the voltage output end of above-mentioned SOT23N integrated circuit; N-MOS pipe (N-type FET), the first stitch 30 electric connections of its grid and above-mentioned interrupteur SW 2, and above-mentioned 3V DC voltage is connected between the first stitch 30 of this grid and above-mentioned interrupteur SW 2, the source ground of this N-MOS pipe; A P-MOS pipe (P type FET), the drain electrode of its grid and above-mentioned N-MOS pipe is electrically connected, and its source electrode and above-mentioned 12V DC voltage are electrically connected;
A time delay relay system 4, it is a time-delay relay 4, it is electrically connected with the drain electrode of above-mentioned 220V alternating voltage, above-mentioned P-MOS pipe respectively;
A heater 5, itself and above-mentioned time delay relay system 4 are electrically connected.
Its operation principle is as follows:
When interrupteur SW 2 is allocated to the first stitch 30, the automatic protection circuit of this electric iron (Fig. 2) is opened, by the service condition of above-mentioned SOT23N integrated circuit sensing electric iron, when electric iron leaves support 7, described SOT23N integrated circuit sensing is less than magnetic field around, its voltage output end will be exported a high level, described N-MOS pipe conducting, and its drain electrode output one low level, therefore described P-MOS pipe conducting, described time-delay relay 4 is opened, and electric iron is started working;
When electric iron is positioned on support 7, described SOT23N integrated circuit senses magnetic field around, and its voltage output end will be exported a low level, described N-MOS pipe cut-off, and described time-delay relay 4 disconnected afterwards at 30 seconds, and electric iron quits work;
When interrupteur SW 2 is allocated to the 3rd stitch 32, the automatic protection circuit of this electric iron is closed.
Compared to prior art, automatic protective system of electric soldering iron provided by the present invention, makes electric iron automatic cut-off power after out-of-work certain hour, thereby reaches the object of real saving electric energy.
Claims (2)
1. an automatic protective system for electric iron, is characterized in that, it comprises:
A magnet, it is located on the support of an electric iron;
An automatic protection circuit, it is located on the interior circuit board of electric iron, and it comprises a power circuit; A magnetic conduction circuitry, itself and above-mentioned power circuit are electrically connected; A control circuit, it is electrically connected with above-mentioned magnetic conduction circuitry, power circuit respectively; A time delay relay system, it is electrically connected with above-mentioned control circuit, power circuit respectively; A heater, itself and above-mentioned time delay relay system are electrically connected;
Described power circuit comprises a rectifier, and itself and a 220V alternating voltage are electrically connected, and by the processing of above-mentioned rectifier, above-mentioned 220V alternating voltage are changed into a 12V DC voltage; A SOT223 integrated circuit, itself and above-mentioned rectifier are electrically connected, and the processing by this SOT223 integrated circuit changes into 3V DC voltage by above-mentioned 12V DC voltage;
Described magnetic conduction circuitry comprises a SOT23N integrated circuit, and its voltage input end and above-mentioned 3V DC voltage are electrically connected, its earth terminal ground connection;
Described control circuit comprises a switch, and this switch comprises first stitch, second stitch, the 3rd stitch, and the voltage output end of above-mentioned the second stitch and above-mentioned SOT23N integrated circuit is electrically connected; N-MOS pipe, the first stitch electric connection of its grid and above-mentioned interrupteur SW 2, and above-mentioned 3V DC voltage is connected between this grid and the first stitch of above-mentioned interrupteur SW 2, the source ground of this N-MOS pipe; A P-MOS pipe, the drain electrode of its grid and above-mentioned N-MOS pipe is electrically connected, and its source electrode and above-mentioned 12V DC voltage are electrically connected.
2. automatic protective system of electric soldering iron according to claim 1, is characterized in that, described time delay relay system is a time-delay relay, and it is electrically connected with the drain electrode of above-mentioned 220V alternating voltage, above-mentioned P-MOS pipe respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910305843.1A CN101992334B (en) | 2009-08-20 | 2009-08-20 | Automatic protective system of electric soldering iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910305843.1A CN101992334B (en) | 2009-08-20 | 2009-08-20 | Automatic protective system of electric soldering iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101992334A CN101992334A (en) | 2011-03-30 |
| CN101992334B true CN101992334B (en) | 2014-11-12 |
Family
ID=43783347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910305843.1A Expired - Fee Related CN101992334B (en) | 2009-08-20 | 2009-08-20 | Automatic protective system of electric soldering iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101992334B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173133Y (en) * | 1993-09-08 | 1994-08-03 | 徐世刚 | High-effect quick heating and energy-saving electromagnetic soldering iron |
| CN2531908Y (en) * | 2001-11-15 | 2003-01-22 | 罗兴科 | Quick-heating energy-saving electric Soldering gun |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085700U (en) * | 1991-03-15 | 1991-10-02 | 石惟一 | Dc welder with thyristor |
| CN2375404Y (en) * | 1998-12-31 | 2000-04-26 | 杨德毅 | Electronic soldering iron |
| JP2001219268A (en) * | 2000-02-07 | 2001-08-14 | Aisuke Shimizu | High-frequency soldering iron |
| DE10209436A1 (en) * | 2001-03-07 | 2002-09-19 | Helmut Prager | Device for detecting, monitoring, influencing electric iron operating state has power switch controlled by control unit to perform emergency or safety cut-off depending on iron operating state |
| FR2837996A1 (en) * | 2002-03-29 | 2003-10-03 | Koninkl Philips Electronics Nv | MOS TRANSISTOR VOLTAGE CONVERTER |
| US7259356B2 (en) * | 2003-11-07 | 2007-08-21 | Delaware Capital Formation, Inc. | Temperature self-regulating soldering iron with removable tip |
| CN2855611Y (en) * | 2006-01-06 | 2007-01-10 | 赵俊明 | Energy-saving and two-temp. type electric iron |
| CN101003102B (en) * | 2006-01-21 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Electric iron, and bracket for placing electric iron |
| CN201257563Y (en) * | 2008-06-09 | 2009-06-17 | 王子剑 | Temperature controllable electric soldering iron |
| CN201529820U (en) * | 2009-08-20 | 2010-07-21 | 神讯电脑(昆山)有限公司 | Automatic protection mechanism for electric soldering iron |
-
2009
- 2009-08-20 CN CN200910305843.1A patent/CN101992334B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2173133Y (en) * | 1993-09-08 | 1994-08-03 | 徐世刚 | High-effect quick heating and energy-saving electromagnetic soldering iron |
| CN2531908Y (en) * | 2001-11-15 | 2003-01-22 | 罗兴科 | Quick-heating energy-saving electric Soldering gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101992334A (en) | 2011-03-30 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20150820 |
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| EXPY | Termination of patent right or utility model |