CN2908001Y - Electric iron - Google Patents
Electric iron Download PDFInfo
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- CN2908001Y CN2908001Y CN 200520136899 CN200520136899U CN2908001Y CN 2908001 Y CN2908001 Y CN 2908001Y CN 200520136899 CN200520136899 CN 200520136899 CN 200520136899 U CN200520136899 U CN 200520136899U CN 2908001 Y CN2908001 Y CN 2908001Y
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Abstract
The utility model relates to an electric iron, which comprises an electric iron and a touch-type control circuit. The touch-type control circuit is provided with a controllable silicon rectifier, with the anode of which connected with a heating wire and the cathode connected with the zero line of power source after being connected with a second diode. A control polar is connected with the live wire of the power source by a first resistance. A first diode is connected in series with the controllable silicon rectifier, whose anode is connected with a zero line of the power source and the cathode is connected with a heating wire. The first resistance is connected with a collector of a first dynatron, with an emitter of the dynatron is grounded. A base electrode is connected with a second resistance and a third resistance. The public ends of the second and third resistance are connected with the collector of a second dynatron, and the emitter of the dynatron is grounded. The base electrode is connected with a touch-type metal sheet by a fourth resistance. The live wire of the power source is connected in series with a rectifier diode, a current limit resistance, a steady voltage circuit and the third resistance. The utility model is provided with a touch-type control circuit which can be inserted with both sides. The control circuit can control the circuit to heat the electric iron with the different power, which extends service life of the electric iron and saves electricity.
Description
[technical field]
The utility model relates to a kind of electric iron, refers in particular to a kind of novel electric iron that is provided with touch control circuit, and this circuit can be controlled electric iron easily and carry out half-power heating or heating with full power.
[background technology]
Electric iron is one of instrument indispensable in the work of electronic component composition, general electric iron mainly by iron core, be built in this iron core solder horn, be wound in heating wire on this iron core and the attaching plug that is connected with this heating wire etc. and form.Between the whole operating period, general electric iron all is a heating with full power, and this causes with regard to making the frequent dry combustion method of electric iron and damages or burn black soldering tip and the bad tin of going up, even the electric iron temperature is too high and weld bad part, and waste electric power.At the existing shortcoming of general electric iron, people develop all kinds of novel electric iron to satisfy the needs of welding job, disclosed as China national Department of Intellectual Property on September 15th, 2004, application number is 200310110423.0 application for a patent for invention, promptly disclosed a kind of energy-saving electric iron, it comprises electric iron, lead, handle and plug, be characterized on the handle of electric iron, energy-saving controller being set, controller comprises diode halfwave rectifier reduction voltage circuit, push-and-pull switch and display lamp, push-and-pull switch divides third gear: one grade is normal power voltage supply, one grade is the step-down power supply, and another shelves are outage.This electric iron can be carried out different power voltage supplies according to the difference of duty, to reach conservation of power, to prolong the electric iron purpose in service life.But also there is certain shortcoming in this application for a patent for invention, and it controls different supply voltages by push-and-pull switch, one, and operation is not very easy; The two may be because operator's inadvertent be adjusted to push-and-pull switch suitable gear between the work down-time period yet, thereby does not have conservation of power, prolong the electric iron effect in service life.
[summary of the invention]
Be the solution existing shortcoming of electric iron of commonly seeing, the purpose of this utility model is to provide a kind of can control the novel electric iron that electric iron carries out half-power heating or heating with full power easily, thus the service life, the conservation of power that prolong electric iron.
The purpose of this utility model is to realize by following technical solution: this novel electric iron is made up of an interconnected electric iron and a touch control circuit, this touch control circuit includes a silicon controlled rectifier (SCR), its anode connects heating wire, negative electrode connects zero-power line after connecting one second diode, and the control utmost point connects power firestreak by one first resistance; This silicon controlled rectifier (SCR) is parallel with one first diode, and its anode connects zero-power line, and negative electrode connects heating wire; This first resistance connects one first triode, and the colelctor electrode of this first triode connects this first resistance, grounded emitter, and base stage is connected with one second resistance and one the 3rd resistance; This second resistance is connected the colelctor electrode of one second triode with the common port of the 3rd resistance, the grounded emitter of this second triode, and base stage is connected with one by one the 4th resistance and touches sheet metal; This power firestreak is connected and is connected a mu balanced circuit behind a commutation diode, the current-limiting resistance, and this mu balanced circuit is made up of a Zener diode and one the 3rd electric capacity of parallel connection, and the one termination is gone into the 3rd resistance, an end ground connection.Power supply makes the first triode conducting through this commutation diode, current-limiting resistance, high level of mu balanced circuit output by the 3rd resistance and second resistance, silicon controlled rectifier (SCR) ends, the positive half cycle of alternating current can not conducting, the first diode current flow alternating current negative half period, and reaching half-power heating heating wire, electric iron is in keeping warm mode; When work, the user hands electric iron, the staff touch is arranged at the touch sheet metal on this electric iron handle and produces a human body signal, this human body signal passes through the 4th resistance and this second triode of conducting, and drag down the 3rd resistance and second level of resistance, first triode is transferred to by conducting to be ended, silicon controlled rectifier (SCR) transfers conducting to by ending, and then the positive half cycle of conducting alternating current and reach heating with full power to satisfy the welding needs, and the user unclamps hand, and electric iron returns to keeping warm mode again.
This touch control circuit also is provided with a delay circuit, this delay circuit inserts between this mu balanced circuit and the 3rd resistance, it includes an integrated circuit CD4060,16 pin of this CD4060 connect this mu balanced circuit to obtain working power, this 16 pin also is connected with an electrify restoration circuit of being made up of first electric capacity and the 5th resistance, the other end ground connection of this electrify restoration circuit; Its 13 pin connects the 3rd resistance; Its 12 pin connects the 5th resistance; 11,10,9 pin connect one the 6th resistance, one the 7th resistance and one second electric capacity respectively; Its 8 pin ground connection; The 3rd resistance connects 11 pin of this CD4060 by one the 3rd diode.After this electric iron inserts power supply, civil power is via this commutation diode, current-limiting resistance, mu balanced circuit is delivered to this CD4060, low level of 13 pin of this CD4060 output is by the 3rd resistance after powering on, second resistance ends this first triode, this silicon controlled rectifier (SCR) conducting, the positive half cycle conducting of alternating current, this first diode current flow alternating current negative half period, and reach the heating with full power heating wire, after counting to during the time-delay set, high level of an output of this CD4060 output is by the 3rd resistance, second resistance makes this first triode conducting, this silicon controlled rectifier (SCR) ends, thereby realize the half-power heating, and this high level makes this CD4060 failure of oscillation keep exporting high level by the 3rd diode, thereby makes electric iron be in keeping warm mode; And when needing work, tangible this touch sheet metal and reach the purpose of heating with full power.This delay circuit be arranged so that this electric iron between time delay, but the heating with full power heating wire and makes it reach operating temperature apace.
This touch control circuit also is provided with an indicating circuit, and this indicating circuit includes a light emitting diode, and the anode of this light emitting diode connects this heating wire by one the 8th resistance, and its negative electrode connects the anode of this second diode, and is parallel with one the 9th resistance.This indicating circuit can show the duty of this electric iron, and this light emitting diode is not luminous during heating with full power, glows during insulation.
The utility model is for more convenient to use, this novel touch formula control circuit also comprises another embodiment, this touch control circuit comprises a power driving circuit, one power supply IC power supply circuits, one touches voltage provides circuit, one touches indicating circuit, an and touch-sensing circuit, wherein power drive partly comprises a silicon controlled rectifier (SCR), wherein the negative electrode of silicon controlled rectifier (SCR) is as reference ground, the negative electrode that its anode is parallel with one second diode is connected on the power firestreak, negative electrode connects heating wire second diode anode in parallel and is connected on the zero line, its control utmost point one the 7th diode of connecting, one the 6th diode, behind one the 5th diode, the output of one the 7th resistance of connecting again to a logic NAND drive circuit; One touch-sensing circuit, comprise one first triode, the colelctor electrode of its first triode connects one the 5th resistance, described the 5th resistance is connected with the input of logic NAND drive circuit, its emitter stage connects with reference to ground, its base stage connects one the 6th resistance, and described the 6th resistance and one touches sheet metal and is connected, and its base stage also connects 1 the 11 resistance and connects with reference to ground.Described touch voltage provides circuit to comprise connection one second resistance on the live wire, even connects with reference to ground behind one second electric capacity and the 4th diode.Power supply IC power supply circuits, it comprises that live wire connects one first resistance, behind first diode, connects the 3rd Zener diode, the 3rd resistance, and the also connection of first electric capacity is with reference to ground.Touch indicating circuit, comprise one the 4th resistance, connect a light emitting diode, connect with reference to ground.
Present embodiment also can comprise a delay circuit, described delay circuit is connected with the input of logic NAND drive circuit, it includes an integrated circuit CD4060,16 pin of this integrated circuit CD4060 obtain working power from civil power, this 16 pin reset circuit that also Connects Power, the other end ground connection of this electrify restoration circuit; Its 13 pin connects and is divided into two-way, and one the tunnel connects the 8th diode, and another road is connected with the NAND drive circuit; Its 12 pin connects into the common port of the 3rd electric capacity and the 8th resistance; 11,10,9 pin connect one the 9th resistance, 1 the tenth resistance and one the 4th electric capacity respectively; Its 8 pin ground connection.
Comprise a piezo-resistance between the live wire of described power supply and the zero line.
The operation principle of present embodiment is: when the output high level is given forward voltage drop of silicon controlled rectifier (SCR) by the 7th resistance, the 5th diode, the 6th diode, the 7th diode, make the conducting of control silicon rectifier, the positive and negative all total power heating of heating wire this moment, if during low level of logic NAND drive circuit output, the control silicon rectifier ends, and the positive half cycle of alternating current can not conducting.And reaching half-power heating heating wire, electric iron is in keeping warm mode; When work, the user hands electric iron, the staff touch is arranged at the touch sheet metal on this electric iron handle and produces a human body signal, this human body signal is by described the 6th resistance, pass to first triode and make its conducting, electric weight with second electric capacity discharges like this, light emitting diode goes out, low level on described second electric capacity sends the input of logic NAND drive circuit to by the 5th resistance, and the output of logic NAND drive circuit is exported a high level by the 7th resistance, the 5th diode, the 6th diode, the 7th diode, the trigger electrode that is added to silicon controlled rectifier (SCR) makes its conducting, the positive and negative all total power heating of heating wire this moment; When hand does not touch, first triode ends, its second capacitance voltage raises, become high level by the 4th voltage-stabiliser tube voltage stabilizing, light emitting diode is bright, simultaneously high level is passed to the input of logic NAND drive circuit by the 5th resistance, and input two of logic NAND drive circuit all is a high level output and export a low flat signal.This control silicon rectifier is transferred to by conducting end, and the not conducting of the positive half cycle of alternating current, and first diode continues conducting alternating current negative half period, electric iron is in the keeping warm mode of half-power heating.
Advantage of the present utility model is:
1. because electric iron is provided with touch control circuit, but make its heating with full power when work, and half-power heating and be in keeping warm mode when work rests, avoid this electric iron to be in the total power dry-fire condition, thereby help prolonging the service life and the conservation of power of electric iron, and touching the duty of controlling this circuit by staff, its operation is very easy and effective;
2. the setting of delay circuit makes this electric iron between time delay, but the heating with full power heating wire, thus reach operating temperature apace.
3. because the exposure of can the be positive and negative slotting touch control circuit of another embodiment of the utility model is more convenient to use.
[description of drawings]
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the schematic appearance of a kind of novel electric iron of the utility model.
Fig. 2 is the structure principle chart of the touch formula control circuit of a kind of novel electric iron of the utility model.
Fig. 3 is the structure principle chart of another embodiment of the touch control circuit of a kind of novel electric iron of the utility model.
[specific embodiment]
As shown in Figure 1, be the schematic appearance of a kind of novel electric iron of the utility model, from appearance, this novel electric iron includes an electric iron 10, the handle of this electric iron 10 is provided with one and touches a sheet metal 20 and an indicator lamp 30, and this indicator lamp 30 is generally a light emitting diode.This touch sheet metal 20 all inserts a touch control circuit (not drawing among Fig. 1) that is built in handle inside with this indicator lamp 30.
With reference to shown in Figure 2, this touch control circuit includes a silicon controlled rectifier (SCR) q1 again, and its anode meets heating wire RL, and negative electrode inserts zero-power line N after connecting one second diode D4, and the control utmost point connects power firestreak L by one first resistance R 1; This silicon controlled rectifier (SCR) q1 is parallel with one first diode D2, and its anode meets zero-power line N, and negative electrode meets heating wire RL; This first resistance R 1 is connected one first triode Q2 at its common port with silicon controlled rectifier (SCR) q1, and the colelctor electrode of this first triode Q2 connects this first resistance R 1, grounded emitter, and base stage is connected in series with one second resistance R 5 and one the 3rd resistance R 6; The common port of this second resistance R 5 and the 3rd resistance R 6 connects into the colelctor electrode of one second triode Q3, the grounded emitter of this second triode Q3, and base stage is connected with one by one the 4th resistance R 10 and touches sheet metal 20; This power firestreak L connect a commutation diode D1, a current-limiting resistance R2 and a mu balanced circuit 200, this mu balanced circuit 200 is made up of a Zener diode D3 and one the 3rd capacitor C 1 of parallel connection, and the one termination is gone into the 3rd resistance R 6, one end ground connection.
Mains supply can pass through this commutation diode D1, current-limiting resistance R2, mu balanced circuit 200 back high level of output make this first triode Q2 conducting by the 3rd resistance R 6 and second resistance R 5, silicon controlled rectifier (SCR) q1 ends, the positive half cycle of alternating current can not conducting, the first diode D2 conducting alternating current negative half period, and reaching half-power heating heating wire, electric iron is in keeping warm mode; When work, the user hands electric iron, the staff touch is arranged at the touch sheet metal 20 on this electric iron handle and produces a human body signal, this human body signal passes through the 4th resistance R 10 and this second triode of conducting Q3, and drag down the level of the 3rd resistance R 6 and second resistance R 5, this first triode Q2 is transferred to by conducting to be ended, silicon controlled rectifier (SCR) q1 transfers conducting to by ending, and then the positive half cycle of conducting alternating current, and the first diode D2 continues conducting alternating current negative half period, weld needs thereby reach the heating with full power heating wire to satisfy, and the user unclamps hand, electric iron returns to the keeping warm mode of original half-power electric heating again.
Be connected in the second diode D4 between this silicon controlled rectifier (SCR) q1 and the zero-power line N, can prevent that the user from electric shock accidents taking place.
When electric iron is started working, often need electric iron to be heated to than higher temperature at short notice, this just needs the electric iron heating with full power, and the utility model is set up a delay circuit 100 on this touch control circuit, to be implemented between time delay, electric iron can heating with full power.This delay circuit 100 inserts between this mu balanced circuit 200 and the 3rd resistance R 6, it includes an integrated circuit CD4060,16 pin of this CD4060 connect this mu balanced circuit 200 to obtain working power from civil power, this 16 pin also is connected with an electrify restoration circuit 110 of being made up of first capacitor C 2 and the 5th resistance R 4, the other end ground connection of this electrify restoration circuit 110; Its 13 pin connects the 3rd resistance R 6; Its 12 pin connects into the common port of first capacitor C 2 and the 5th resistance R 4; 11,10,9 pin connect one the 6th resistance R 8, one the 7th resistance R 3 and one second capacitor C 3 respectively; Its 8 pin ground connection; The 3rd resistance R 6 connects 11 pin of this CD4060 by one the 3rd diode D5.The 6th resistance R 8, the 7th resistance R 3, second capacitor C 3 are in conjunction with this CD4060, guarantee the time-delay that had to set in 3-6 minute behind this circuit electrification reset, after the delay arrival time from output that high level makes this CD4060 failure of oscillations keep high level by the 3rd diode D5 of 13 pin output of this CD4060; This mu balanced circuit 200 plays the effect of burning voltage, avoids overtension and damages this CD4060.
After this electric iron inserts power supply, civil power is via this commutation diode D1, current-limiting resistance R2, mu balanced circuit 200 is delivered to this CD4060, low level of 13 pin of this CD4060 output is by the 3rd resistance R 6 after powering on, second resistance R 5 is ended this first triode Q2, this silicon controlled rectifier (SCR) q1 conducting, the positive half cycle conducting of alternating current, this first diode D2 conducting alternating current negative half period, and reach the heating with full power heating wire, after counting to during the time-delay set, high level of this CD4060 output is by the 3rd resistance R 6, second resistance R 5 makes this first triode Q2 conducting, this silicon controlled rectifier (SCR) q1 ends, the positive half cycle of civil power can not pass through, and make the first diode D2 conducting alternating current negative half period, thereby realize the half-power heating, and this high level makes this CD4060 failure of oscillation keep exporting high level by the 3rd diode D5, thereby makes electric iron be in keeping warm mode; And when needing work, tangible this touch sheet metal and reach the purpose of heating with full power.This delay circuit be arranged so that this electric iron between time delay, but the heating with full power heating wire and makes it reach operating temperature apace.
This touch control circuit also is provided with an indicating circuit 300, this indicating circuit 300 includes a LED, the anode of this LED connects this heating wire RL by one the 8th resistance R 7, and its negative electrode connects the anode of this second diode D4, and is parallel with one the 9th resistance R 9.This indicating circuit 300 can be used for showing the duty of this electric iron, and this LED is not luminous in the electric iron heating with full power, and glows during insulation in the heating of its half-power.
Fig. 3 is the structure principle chart of another embodiment of can the be positive and negative slotting touch control circuit of the utility model, as shown in Figure 3, can comprise a power driving circuit 40 (the not circuit on the with dashed lines frame) by positive and negative slotting touch control circuit, one power supply IC power supply circuits 50, one touches voltage provides circuit 60, one touches indicating circuit 70, an and touch-sensing circuit 80, the negative electrode of first resistance R 1 of wherein said power supply IC power supply circuits 50 and the first diode D1 of power driving circuit 40 is connected, described power supply IC power supply circuits 50, one touches voltage provides circuit 60, one touches indicating circuit 70, and one between the touch-sensing circuit 80 by being connected in series, first resistance R 1 and the touch voltage of described power supply IC power supply circuits 200 provide second resistance R 2 of circuit 60 to be connected on the live wire L, first capacitor C 1 of wherein said power supply IC power supply circuits 50, the 3rd diode D3, the 3rd resistance R 3, touching voltage provides second capacitor C 2 of circuit 60, the 4th diode D4, touch the LED of indicating circuit 70, and the transmitting terminal of the first triode Q1 of touch-sensing circuit 80, the 11 resistance 11 is connected with reference ground.
Described power driving circuit 40 comprises a silicon controlled rectifier (SCR) TQ1, wherein the negative electrode of silicon controlled rectifier (SCR) TQ1 is as reference ground, the negative electrode that its anode is parallel with one second diode D2 is connected on the power firestreak L, negative electrode connects heating wire RL D2 anode in parallel and is connected on the zero line N, its control utmost point one the 7th diode D7 that connects, one the 6th diode D6, behind one the 5th diode D5, the output of one the 7th resistance R, 7 to the one logic NAND drive circuit U1 that connect again; One power supply IC power supply circuits 50, it connects the 3rd Zener diode D3 after comprising that live wire L connects one first resistance R, 1, the first diode D1, the 3rd resistance R 3, and the also connection of first capacitor C 1 is with reference to ground; One touches voltage provides circuit 60, comprises that live wire L goes up connection one second resistance R 2, even connects behind one second capacitor C 2 and the 4th diode D4 with reference to ground; One touches indicating circuit 70, comprises one the 4th resistance R 4, connects a LED, connects with reference to ground; One touch-sensing circuit 80, comprise one first triode Q1, the colelctor electrode of its first triode Q1 connects one the 5th resistance R 5, described the 5th resistance R 5 is connected with the input of logic NAND drive circuit U1, its emitter stage connects with reference to ground, its base stage connects one the 6th resistance R 6, and described the 6th resistance R 6 and touches sheet metal 20 and is connected, and its base stage also connects 1 the 11 resistance R 11 and connects with reference to ground.
Present embodiment also can comprise a delay circuit 90, described delay circuit 90 is connected with the input of logic NAND drive circuit U1, it includes an integrated circuit CD4060,16 pin of this CD4060 obtain working power from civil power, this 16 pin reset circuit 91 that also Connects Power, the other end ground connection of this electrify restoration circuit 91; Its 13 pin connects and is divided into two-way, and one the tunnel connects the 8th diode D8, and another road is connected with NAND drive circuit U1; Its 12 pin connects into the common port of the 3rd capacitor C 3 and the 8th resistance R 8; 11,10,9 pin connect one the 9th resistance R 9,1 the tenth resistance R 10 and one the 4th capacitor C 4 respectively; Its 8 pin ground connection.
Comprise a piezo-resistance VR1 between the live wire L of its power supply and the zero line N, in order to prevent the thunder and lightning inner member of breaking.
The operation principle of present embodiment is: when U1 output high level is given forward voltage drop of silicon controlled rectifier (SCR) TQ1 by the 7th resistance R 7, the 5th diode D5, the 6th diode D6, the 7th diode D7, make control silicon rectifier TQ1 conducting, the positive and negative all total power heating of heating wire RL this moment, if during low level of logic NAND drive circuit U1 output, control silicon rectifier TQ1 ends, and the positive half cycle of alternating current can not conducting.And reaching half-power heating heating wire, electric iron is in keeping warm mode; When work, the user hands electric iron, the staff touch is arranged at the touch sheet metal 20 on this electric iron handle and produces a human body signal, this human body signal is by described the 6th resistance R 6, pass to the first triode Q1 and make its conducting, electric weight with second capacitor C 2 discharges like this, LED goes out, low level on described second capacitor C 2 sends the input of logic NAND drive circuit U1 to by the 5th resistance R 5, the output of logic NAND drive circuit U1 is exported a high level by the 7th resistance R 7, the 5th diode D5, the 6th diode D6, the 7th diode D7, the trigger electrode that is added to silicon controlled rectifier (SCR) TQ1 makes its conducting, the positive and negative all total power heating of heating wire RL this moment; When hand does not touch, the first triode Q1 ends, its second capacitor C, 2 voltages raise, become high level by the 4th voltage-stabiliser tube D4 voltage stabilizing, LED is bright, simultaneously high level is passed to the input of logic NAND drive circuit U1 by the 5th resistance R 5, and input two of logic NAND drive circuit U1 all is a high level output and export a low flat signal.This control silicon rectifier TQ1 is transferred to by conducting end, and the not conducting of the positive half cycle of alternating current, and the first diode D2 continues conducting alternating current negative half period, electric iron is in the keeping warm mode of half-power heating.
When electric iron is started working, often need at short notice electric iron to be heated to than higher temperature, this just needs the electric iron heating with full power, the utility model can set up a delay circuit 90 on positive and negative this slotting touch control circuit, to be implemented between time delay, electric iron can heating with full power.Wherein the 3rd capacitor C 3 and the 8th resistance R 8 are electrify restoration circuits 91 of integrated circuit CD4060, and above-mentioned the 9th resistance R 9, the ten resistance R 10, the four capacitor C 4 are formed the RC oscillating circuit of integrated circuit CD4060.One powers on, it is low level that electrify restoration circuit 91 makes 13 pin of integrated circuit CD4060, described low level flows to the input of NAND drive circuit U1, make its output export a high level, give forward voltage drop of silicon controlled rectifier (SCR) TQ1 by the 7th resistance R 7, the 5th diode D5, the 6th diode D6, the 7th diode D7, make control silicon rectifier TQ1 conducting, the positive and negative all total power heating of heating wire RL this moment; Divide through integrated circuit CD4060 that will to put integrated circuit CD4060 the 13rd pin at setting-up time behind the frequency delay be high level, when 13 pin positions are high level,, keep this state always by make the RC vibration failure of oscillations at the 8th diode D8; Status signal sends the input of NAND drive circuit U1 simultaneously to, input two of logic NAND drive circuit U1 all is a high level output and export a low flat signal, this control silicon rectifier TQ1 is transferred to by conducting to be ended, and the not conducting of the positive half cycle of alternating current, and the first diode D2 continues conducting alternating current negative half period, and electric iron is in the keeping warm mode of half-power heating.This delay circuit be arranged so that this electric iron between time delay, but the heating with full power heating wire and makes it reach operating temperature apace.
This touch control circuit also is provided with one and touches indicating circuit 70, this touch indicating circuit 70 can be used for showing the duty of this electric iron, when hand touch sheet metal is effective, LED goes out, when hand discharges when effective, LED is bright, and electric iron powers on and plays the power supply indicative function in the time-delay, the bright indication electric iron insulation of time-delay back diode (LED) heated condition, diode (LED) goes out and indicates electric iron heating with full power state.
Advantage of the present utility model is:
1. be provided with touch control circuit in electric iron, but make its heating with full power when work, and half-power heating and be in keeping warm mode when work rests, avoid this electric iron to be in the total power dry-fire condition, thereby help prolonging the service life and the conservation of power of electric iron, and touching the duty of controlling this circuit by staff, its operation is very easy and effective;
2. the setting of delay circuit 90 makes this electric iron between time delay, but the heating with full power heating wire, thus reach operating temperature apace.
3. because the exposure of can the be positive and negative slotting touch control circuit of another embodiment of the utility model is more convenient to use.
The above person is the utility model most preferred embodiment only, is not to be used to limit scope of the present utility model, and all equivalences of being done according to the utility model claim change or modify, and are all the utility model and contain.
Claims (9)
1. novel electric iron, it includes an electric iron, it is characterized in that: described electric iron is connected with a touch control circuit, described touch control circuit includes a silicon controlled rectifier (SCR) (q1), its anode connects heating wire (RL), negative electrode connects zero-power line (N) after connecting one second diode (D4), and the control utmost point connects power firestreak (L) by one first resistance (R1); Described silicon controlled rectifier (SCR) (q1) is parallel with one first diode (D2), and its anode connects described zero-power line (N), and negative electrode connects described heating wire (RL); Described first resistance (R1) is connected one first triode (Q2) at its common port with silicon controlled rectifier (SCR) (q1), the colelctor electrode of described first triode (Q2) connects described first resistance (R1), grounded emitter, base stage are connected in series with one second resistance (R5) and one the 3rd resistance (R6); The common port of described second resistance (R5) and described the 3rd resistance (R6) connects into the colelctor electrode of one second triode (Q3), the grounded emitter of described second triode (Q3), and base stage is connected with one by one the 4th resistance (R10) and touches sheet metal (20); Described power firestreak (L) series connection one commutation diode (D1), a current-limiting resistance (R2) and a mu balanced circuit (200), (200 are made up of a Zener diode (D3) and one the 3rd electric capacity (C1) of parallel connection described mu balanced circuit, the one termination is gone into described the 3rd resistance (R6), an end ground connection.
2. novel electric iron as claimed in claim 1, it is characterized in that: described touch control circuit also is provided with a delay circuit (100), described delay circuit (100) inserts between described mu balanced circuit (200) and described the 3rd resistance (R6), it includes an integrated circuit CD4060,16 pin of described CD4060 connect described mu balanced circuit (200), described 16 pin also are connected with an electrify restoration circuit (110) of being made up of first electric capacity (C2) and the 5th resistance (R4), the other end ground connection of described electrify restoration circuit (110); 13 pin of described CD4060 connect described the 3rd resistance (R6); 12 pin of described CD4060 connect the common port of described first electric capacity (C2) and described the 5th resistance (R4); 11,10,9 pin of described CD4060 connect one the 6th resistance (R8), one the 7th resistance (R3) and one second electric capacity (C3) respectively; The 8 pin ground connection of described CD4060; Described the 3rd resistance (R6) connects 11 pin of described CD4060 by one the 3rd diode (D5).
3. novel electric iron as claimed in claim 1 or 2, it is characterized in that: described touch control circuit also is provided with an indicating circuit (300), described indicating circuit (300) includes a light emitting diode (LED), the anode of described light emitting diode (LED) connects described heating wire (RL) by one the 8th resistance (R7), its negative electrode connects the anode of described second diode (D4), and is parallel with one the 9th resistance (R9).
4. novel electric iron, it includes an electric iron, it is characterized in that: comprise a power driving circuit (40), one power supply IC power supply circuits (50), one touches voltage provides circuit (60), one touches indicating circuit (70), an and touch-sensing circuit (80), wherein power drive part (40) comprises a silicon controlled rectifier (SCR) (TQ1), wherein the negative electrode of silicon controlled rectifier (SCR) (TQ1) is as reference ground, the negative electrode that its anode is parallel with one second diode (D2) is connected on the power firestreak (L), negative electrode connects heating wire (RL) second diode in parallel (D2) anode and is connected on the zero line (N), its control utmost point one the 7th diode (D7) of connecting, one the 6th diode (D6), behind one the 5th diode (D5), the output of one the 7th resistance (R7) of connecting again to a logic NAND drive circuit (U1); One touch-sensing circuit (80), comprise one first triode (Q1), the colelctor electrode of its first triode (Q1) connects one the 5th resistance (R5), described the 5th resistance (R5) is connected with the input of logic NAND drive circuit (U1), its emitter stage connects with reference to ground, its base stage connects one the 6th resistance (R6), and described the 6th resistance (R6) and one touches sheet metal (20) and is connected, and its base stage also connects 1 the 11 resistance (R11) and connects with reference to ground.
5. novel electric iron as claimed in claim 4 is characterized in that: described touch voltage provides circuit (60) to comprise that live wire (L) upward connects one second resistance (R2), even connects with reference to ground behind one second electric capacity (C2) and the 4th diode (D4).
6. novel electric iron as claimed in claim 4, it is characterized in that: power supply IC power supply circuits (50), it comprises that live wire (L) connects one first resistance (R1), behind first diode (D1), connect the 3rd Zener diode (D3), the 3rd resistance (R3), and the also connection of first electric capacity (C1) is with reference to ground.
7. novel electric iron as claimed in claim 4 is characterized in that: touch indicating circuit (70), comprise one the 4th resistance (R4), connect a light emitting diode (LED), connect with reference to ground.
8. novel electric iron as claimed in claim 4, it is characterized in that: can comprise a delay circuit (90), described delay circuit (90) is connected with the input of logic NAND drive circuit (U1), it includes an integrated circuit CD4060,16 pin of this integrated circuit CD4060 obtain working power from civil power, this 16 pin reset circuit (91) that also Connects Power, the other end ground connection of this electrify restoration circuit (91); Its 13 pin connects and is divided into two-way, and one the tunnel connects the 8th diode (D8), and another road is connected with NAND drive circuit (U1); Its 12 pin connects into the common port of the 3rd electric capacity (C3) and the 8th resistance (R8); 11,10,9 pin connect one the 9th resistance (R9), 1 the tenth resistance (R10) and one the 4th electric capacity (C4) respectively; Its 8 pin ground connection.
9. novel electric iron as claimed in claim 4 is characterized in that: comprise a piezo-resistance (VR1) between live wire of described power supply (L) and the zero line (N).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520136899 CN2908001Y (en) | 2005-03-18 | 2005-12-01 | Electric iron |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520055790 | 2005-03-18 | ||
| CN200520055790.X | 2005-03-18 | ||
| CN 200520136899 CN2908001Y (en) | 2005-03-18 | 2005-12-01 | Electric iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2908001Y true CN2908001Y (en) | 2007-06-06 |
Family
ID=38127212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520136899 Expired - Fee Related CN2908001Y (en) | 2005-03-18 | 2005-12-01 | Electric iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2908001Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247169A (en) * | 2017-10-20 | 2018-07-06 | 秦辉 | Electric iron full-automatic temperature controller |
| CN114641099A (en) * | 2022-03-09 | 2022-06-17 | 广东精装照明有限公司 | Electric ceramic stove integrated circuit and electric ceramic stove |
-
2005
- 2005-12-01 CN CN 200520136899 patent/CN2908001Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247169A (en) * | 2017-10-20 | 2018-07-06 | 秦辉 | Electric iron full-automatic temperature controller |
| CN114641099A (en) * | 2022-03-09 | 2022-06-17 | 广东精装照明有限公司 | Electric ceramic stove integrated circuit and electric ceramic stove |
| CN114641099B (en) * | 2022-03-09 | 2024-02-20 | 广东精装照明有限公司 | Electric ceramic stove integrated circuit and electric ceramic stove |
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