CN206474780U - Electric iron and air exhauster touch linkage zero-power energy-saving switch circuit - Google Patents

Abstract

The utility model discloses an electric soldering iron and an exhaust fan touch linkage zero-power consumption energy-saving switch circuit, which is characterized in that it includes a first live wire connection end and a first neutral wire connection end for connecting a 220V power supply, and also includes a first socket, Second socket, first trigger triac, second trigger triac, first triac, second triac, first optocoupler, second optocoupler, bridge rectifier, The first Zener diode, the fifth diode, the first capacitor, the second capacitor, the third capacitor, the fourth capacitor, the fifth capacitor, the first resistor, the second resistor, the third resistor, the fourth resistor, the fifth resistor Resistor, sixth resistor, seventh resistor, eighth resistor, ninth resistor, tenth resistor, eleventh resistor, first triode, second triode, third triode, fourth triode , the fifth triode and the touch piece. The utility model has the advantages of simple structure, reasonable design, convenient actual operation and remarkable energy-saving effect.

Description

Electric soldering iron and exhaust fan touch linkage zero power consumption energy saving switch circuit

technical field

The utility model relates to the technical field of a USB charging stand, in particular to a USB female socket with a micro switch.

Background technique

Many DC power supply devices need to be delayed for a period of time after being turned off to complete various tasks, including data storage and mechanical mechanisms returning to their original positions. At present, the widely used DC time-delay switches are traditional mechanical time-delay switches and electronic time-delay switches. However, there are disadvantages such as large volume, high cost, low reliability, and poor versatility. For example, in the control of electric soldering irons, when the electric soldering irons currently on the market are not in use, or when they are not in use, sometimes they forget to turn off the power switch, which will cause the electric soldering iron to heat for a long time, which not only consumes power, but also causes There is a fire.

Utility model content

The technical problem to be solved by the utility model is to provide a USB female socket with a simple structure and reasonable design with a micro switch.

The technical problem to be solved by the utility model adopts the following technical solutions to realize:

An electric soldering iron and exhaust fan touch linkage zero-power energy-saving switch circuit is characterized in that it includes a first live wire connection end and a first neutral wire connection end for connecting to a 220V power supply, and also includes a first socket, a second socket, and a second socket. One trigger triac, second trigger triac, first triac, second triac, first optocoupler, second optocoupler, bridge rectifier, first Zener diode , the fifth diode, the first capacitor, the second capacitor, the third capacitor, the fourth capacitor, the fifth capacitor, the first resistor, the second resistor, the third resistor, the fourth resistor, the fifth resistor, the sixth resistor , the seventh resistor, the eighth resistor, the ninth resistor, the tenth resistor, the eleventh resistor, the first triode, the second triode, the third triode, the fourth triode, the fifth triode tubes and touch pads.

The second live wire end in the first socket, one end of the first capacitor and the third live wire end in the second socket are all connected to the first live wire connection end; the first two-way controllable third pin, the third pin One end of the second capacitor and the third pin of the second bidirectional thyristor are both connected to the first neutral line connection end;

The second neutral terminal in the first socket is respectively connected to the first pin of the first bidirectional thyristor and one end of the first trigger bidirectional thyristor, and the other end of the first trigger bidirectional thyristor is connected to The 4th pin of the first photocoupler is connected to the 2nd pin of the first bidirectional thyristor through the photoresistor in the first photocoupler, and the 1st pin of the first photocoupler Connect to one end of the first resistor, and the second pin of the first photocoupler is grounded;

The other end of the first capacitor is connected to the first pin of the bridge rectifier, the second pin of the bridge rectifier is grounded, the third pin of the bridge rectifier is connected to the other end of the second capacitor, and the fourth pin of the bridge rectifier respectively connected to one end of the third capacitor, one end of the first voltage regulator tube, the first pin of the second photocoupler and the emitter of the first triode, the other end of the third capacitor and the other end of the first voltage regulator tube are respectively grounding; the 4th pin of the second photocoupler is connected to the third zero line terminal in the second socket through the second trigger bidirectional thyristor, and the 3rd pin of the second photocoupler is connected to the second bidirectional thyristor The second pin of the silicon, the second pin of the second photocoupler is connected to the collector of the fifth triode through the tenth resistor;

The collector of the first triode is respectively connected to the other end of the first resistor and one end of the fifth capacitor, and the other end of the fifth capacitor is grounded; the emitter of the first triode is respectively connected to the second resistor One end, one end of the fourth resistor, the emitter of the third transistor, the cathode of the fifth diode, one end of the seventh resistor and the collector of the fourth transistor, the base of the first transistor is connected to The other end of the second resistor and one end of the third resistor, the other end of the third resistor is connected to the collector of the second transistor and one end of the fifth resistor, and the base of the second transistor is connected to the sixth resistor ( R6) is connected to the touch piece, and the emitter of the second triode is grounded; the other end of the fifth resistor and the other end of the fourth resistor are both connected to the base of the third triode, and the third triode The collector of the tube is connected to the anode of the fifth diode, one end of the fourth capacitor and one end of the eighth resistor, the other end of the fourth capacitor is grounded, and the other end of the eighth resistor is connected to the fourth three-pole The emitter of the fourth triode is connected to one end of the ninth resistor and one end of the eleventh resistor, the other end of the eleventh resistor is grounded, and the other end of the ninth resistor is connected to the base of the fifth triode. pole, and the emitter of the fifth triode is grounded.

The other end of the seventh resistor is grounded.

The first pin of the second photocoupler is connected to the emitter of the first triode, the emitter of the third triode and the collector of the fourth triode.

Both the first photocoupler and the second photocoupler are provided with a light-emitting diode and a photoresistor inside, wherein the positive pole of the light-emitting diode is connected to the first pin, the negative pole is connected to the second pin, and one end of the photoresistor is connected to the fourth pin , and the other end is grounded on pin 3.

The bridge rectifier consists of four diodes.

The beneficial effects of the utility model are: the utility model is simple in structure, reasonable in design, convenient in actual operation, and remarkable in energy-saving effect. The exhaust fan is used to extract the fume while welding, and the fan is also stopped when the welding stops. There is no need for manual opening and closing of the fan. To achieve the purpose of energy saving.

Description of drawings

Fig. 1 is the circuit schematic diagram of the utility model.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific illustrations.

As shown in Figure 1, when working, first connect the L1 and N1 terminals to the 220V power supply, then connect the power plug of the exhaust fan to the L2 and N2 terminals of Z1, and then connect the power plug of the temperature-adjusting electric soldering iron to the Z2 On the power supply terminals of L3 and N3; when the L1 and N1 terminals are connected to the 22V voltage, the L1 terminal voltage is connected to one end of the BT1 triggering bidirectional thyristor, and the L1 terminal is connected to the D1~D4 diode after being stepped down by the C1 capacitor. Pin 1 of bridge rectifier U, N1 end is connected to pin 3 of VT1 bidirectional thyristor, and pin 3 of VT2 bidirectional thyristor is also connected, and one end of C2 capacitor is connected to one end of N1, after being stepped down by C2 capacitor Connected to pin 3 of the bridge rectifier composed of D1~D4 diodes, the AC 220V voltage at the L1 and N1 terminals is stepped down by C1 and C2 capacitors, then rectified by the bridge rectifier U composed of D1~D4 diodes, filtered by C3 capacitors and stabilized by VD1 After outputting 12V voltage after voltage regulation by the voltage diode, the 12V DC voltage is connected to pin 1 of IC2 optocoupler, and also connected to the emitter of Q1 transistor, the emitter of Q3 transistor and the collector of Q4 transistor.

When you need to use a temperature-adjusting electric soldering iron, after touching the P1 touch piece on the handle of the electric iron with your hand, the weak voltage signal on your hand passes through the P1 touch piece and the R6 resistor to make the Q2 triode conduct, and the Q2 triode collector becomes a low level divider. Two circuits, one through the R5 resistor to reduce the base voltage of the Q3 triode, and one end of the R4 resistor is connected to the 12V power supply, which is the upper bias resistor. At this time, the Q3 transistor is turned on, and the collector of the Q3 transistor outputs a high level. The capacitor is charged, and at the same time, the high level output by the collector of the Q3 transistor is stepped down by the R8 resistor to turn on the Q4 transistor, and the emitter of the Q4 transistor outputs a high level after being divided by the R11 resistor and the R9 resistor to output a high level to make the Q5 transistor When it is turned on, the collector of Q5 triode becomes low level, and it is connected to pin 2 of IC2 optocoupler through R10 resistor, so that the internal light-emitting tube of IC2 optocoupler is energized to work and emit light, and the internal photoresistor of IC2 optocoupler is illuminated. Afterwards, the resistance value becomes smaller, so that the voltage on the N3 terminal is triggered by BT2 to conduct the bidirectional thyristor, and then connected to pin 2 of the VT2 bidirectional thyristor through the photosensitive resistor in the IC2 photocoupler, triggering the conduction of the VT2 bidirectional thyristor. Connect, so that the two ends of Z2 output 220V voltage, so that the temperature-adjusting electric soldering iron can work.

When touching the P1 touch piece with your hand, after the Q2 transistor is turned on, the collector of the Q2 transistor is also connected to one end of the R3 resistor, so that the R2 resistor is an upper bias resistor, and the Q1 transistor is also turned on after the Q2 transistor is turned on. The collector of the Q1 triode outputs a high level while charging the C5 capacitor. At the same time, the R1 resistor lowers the voltage to make the internal light-emitting diode of the IC1 photocoupler emit light. After the bidirectional thyristor is triggered by BT1, it is connected to pin 2 of the VT1 bidirectional thyristor through the internal photoresistor of the IC1 photocoupler, and the VT1 bidirectional thyristor is triggered to conduct, so that the exhaust fan connected to Z1 is energized to work and exhaust. The machine absorbs the toxic smell of soldering iron and rosin.

When the hand releases the handle of the electric soldering iron, the Q2 transistor is cut off at this time, so that the Q1 transistor and Q3 transistor are also cut off at the same time, but at this time the C5 capacitor has been fully charged, and it will pass through the R1 resistor to the light-emitting tube inside the IC1 optocoupler. Ground discharge keeps the IC1 photocoupler in the working state of power, keeps VT1 in the on state, and the exhaust fan keeps working when it is powered. After the electricity of the C1 capacitor is discharged, the internal light-emitting tube of the IC1 photocoupler loses power and does not emit light. , The photosensitive resistor inside the IC1 photocoupler has a large resistance due to no light, and there is no voltage output, so that the VT1 bidirectional thyristor is cut off, and Z1 turns off the exhaust fan due to no 220V voltage output, so as to reach the electric soldering iron. The exhaust fan does not work, so as to save electricity.

When the Q3 transistor is cut off, the C4 capacitor is fully charged, and the C4 capacitor will pass through the R8 resistor to the base of the Q4 transistor, and then discharge to the emitter through the R11 resistor to the ground, so that the Q4 transistor remains on and the Q5 transistor remains on. IC2 optocoupler keeps working, keeps VT2 bidirectional thyristor on, N3 keeps 220V voltage output, keeps temperature-adjusting electric soldering iron working, and waits for welding again. Within a certain period of time, after the C4 capacitor is discharged, the base of the Q4 transistor has no voltage, the Q4 transistor is cut off, the Q5 transistor is cut off, the internal light-emitting tube of the IC2 photocoupler loses power and does not work, and the internal photoresistor of the IC2 photocoupler has no light. And the resistance value becomes very large, VT2 bidirectional thyristor cuts off, there is no 220V voltage output at both ends of Z2, and the electric soldering iron is turned off, so that the electric soldering iron is automatically turned off when it is not used for a certain period of time, so as to save electricity.

If you use the electric soldering iron and exhaust fan again, you only need to touch the P1 touch piece once, and the electric soldering iron and exhaust fan will be powered on again. In a certain period of time, when the C5 capacitor and the C4 capacitor are fully charged and the discharge is not completed, touch the P1 touch piece again, and the electric soldering iron and the exhaust fan can work continuously.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (6)

1. An electric soldering iron and exhaust fan touch linkage zero-power energy-saving switch circuit, characterized in that it includes a first live wire connection end (L1) and a first neutral wire connection end (N1) for connecting to a 220V power supply, and also includes a first live wire connection end (N1) A socket (Z1), a second socket (Z2), a first trigger triac (BT1), a second trigger triac (BT2), a first triac (VT1), a second triac Silicon (VT2), First Optocoupler (IC1), Second Optocoupler (IC2), Bridge Rectifier (U), First Zener Diode (VD1), Fifth Diode (D5), First Capacitor (C1), second capacitor (C2), third capacitor (C3), fourth capacitor (C4), fifth capacitor (C5), first resistor (R1), second resistor (R2), third resistor (R3), fourth resistor (R4), fifth resistor (R5), sixth resistor (R6), seventh resistor (R7), eighth resistor (R8), ninth resistor (R9), tenth resistor ( R10), the eleventh resistor (R11), the first transistor (Q1), the second transistor (Q2), the third transistor (Q3), the fourth transistor (Q4), the fifth and third Pole tube (Q5) and touch chip (P1). 2. The electric soldering iron and exhaust fan touch linkage zero-power energy-saving switch circuit according to claim 1, characterized in that, the second live wire terminal (L2) in the first socket (Z1), the first capacitor (C1 ) and the third live wire terminal (L3) in the second socket (Z2) are connected to the first live wire connection terminal (L1); the third pin of the first bidirectional controllable (VT1), the second capacitor One end of (C2) and the third pin of the second bidirectional thyristor (VT2) are both connected to the first neutral terminal (N1); The second neutral terminal (L2) in the first socket (Z1) is respectively connected to the first pin of the first triac and one end of the first triac (BT1), and the first triac The other end of the bidirectional thyristor (BT1) is connected to the 4th pin of the first photocoupler (IC1), and is connected to the first bidirectional diac The second pin of the controlled silicon (VT1), the first pin of the first photocoupler (IC1) is connected to one end of the first resistor (R1), and the second pin of the first photocoupler (IC1) is grounded; The other end of the first capacitor (C1) is connected to the first pin of the bridge rectifier (U), the second pin of the bridge rectifier (U) is grounded, and the third pin of the bridge rectifier (U) is connected to the second The other end of the capacitor (C2) and the 4th pin of the bridge rectifier (U) are respectively connected to one end of the third capacitor (C3), one end of the first regulator tube (VD1), and the first end of the second photocoupler (IC2). Pin and the emitter of the first triode (Q1), the other end of the third capacitor (C3) and the other end of the first regulator tube (VD1) are respectively grounded; the second photocoupler (IC2) of the second Pin 4 is connected to the third neutral terminal (N3) in the second socket (Z2) through the second trigger bidirectional thyristor (BT2), and pin 3 of the second photocoupler (IC2) is connected to the second bidirectional thyristor The second pin of the silicon controlled circuit (VT2), the second pin of the second photocoupler (IC2) is connected to the collector of the fifth triode (Q5) through the tenth resistor (R10); The collector of the first triode (Q1) is respectively connected to the other end of the first resistor (R1) and one end of the fifth capacitor (C5), and the other end of the fifth capacitor (C5) is grounded; the first The emitter of the transistor (Q1) is respectively connected to one end of the second resistor (R2), one end of the fourth resistor (R4), the emitter of the third transistor (Q3), the cathode of the fifth diode (D5), One end of the seventh resistor (R7) and the collector of the fourth transistor (Q4), the base of the first transistor (Q1) is connected to the other end of the second resistor (R2) and the third resistor ( One end of R3), the other end of the third resistor (R3) is connected to the collector of the second transistor (Q2) and one end of the fifth resistor (R5), the base of the second transistor (Q2) is passed through The sixth resistor (R6) is connected to the touch panel (P1), and the emitter of the second triode (Q2) is grounded; the other end of the fifth resistor (R5) and the other end of the fourth resistor (R4) are both connected To the base of the third transistor (Q3), the collector of the third transistor (Q3) is connected to the anode of the fifth diode (D5), one end of the fourth capacitor (C4) and the eighth One end of the resistor (R8), the other end of the fourth capacitor (C4) is grounded, the other end of the eighth resistor (R8) is connected to the base of the fourth triode (Q4), the fourth three The emitter of the electrode tube (Q4) is connected to one end of the ninth resistor (R9) and one end of the eleventh resistor (R11), the other end of the eleventh resistor (R11) is grounded, and the other end of the ninth resistor (R9) is connected to the fifth The base of the transistor (Q5) and the emitter of the fifth transistor (Q5) are grounded. 3. The electric soldering iron and exhaust fan touch linkage zero-power energy-saving switch circuit according to claim 2, characterized in that the other end of the seventh resistor (R7) is grounded. 4. The electric soldering iron and exhaust fan touch linkage zero-power energy-saving switch circuit according to claim 2, characterized in that the first pin of the second photocoupler (IC2) is connected to the first triode (Q1 ), the emitter of the third transistor (Q3) and the collector of the fourth transistor (Q4). 5. The electric soldering iron and exhaust fan touch linkage zero-power energy-saving switch circuit according to claim 2, characterized in that, both the first photocoupler (IC1) and the second photocoupler (IC2) are internally equipped with Light-emitting diode and photoresistor, where the positive pole of the light-emitting diode is connected to pin 1, the negative pole is connected to pin 2, one end of the photoresistor is connected to pin 4, and the other end is grounded to pin 3. 6. The electric soldering iron and exhaust fan touch linkage zero-power energy-saving switch circuit according to claim 2, characterized in that, the bridge rectifier (U) is composed of four diodes.