CN105598547A - Temperature-adjustable energy-saving electric soldering iron - Google Patents

Abstract

The invention discloses a temperature-adjustable energy-saving electric soldering iron which comprises a handle, a soldering bit, a power line, a power switch, a power plug and a soldering bit core, wherein the front end of the handle is fixedly connected with the soldering bit core in the soldering bit; the electric soldering iron temperature-regulating energy-saving functional circuit module comprises an alternating current stepless voltage regulator circuit. The invention provides a temperature-adjusting energy-saving electric soldering iron which can be used for constant temperature adjustment and control, can protect an adjustment display instrument of the electric soldering iron, is more beneficial to use and operation, has attractive appearance and can be widely used for various welding tools and equipment.

Description

A temperature-adjustable energy-saving electric soldering iron

technical field

The invention relates to the technical field of electric soldering irons for welding, in particular to a temperature-controlled electric soldering iron.

Background technique

Electric soldering iron is a necessary tool for electronic production and electrical maintenance. It is mainly used for welding machine components and wires. According to the structure, it can be divided into internal heat type electric soldering iron and external heat type electric soldering iron. According to the function, it can be divided into electric soldering iron for welding and tin absorption. Electric soldering irons are divided into high-power electric soldering irons and low-power electric soldering irons according to different uses. Internal heat soldering irons are smaller and less expensive. Generally, 20W-30W internal heating electric soldering iron is used for electronic production. Of course, there is a 50W external heating electric soldering iron to be prepared. The internal heating type electric soldering iron has higher heating efficiency, and it is more convenient to replace the soldering iron tip.

In order to adjust the temperature of the soldering iron to be suitable for welding processes in different situations, usually the soldering iron needs to be connected with a transformer to adjust the soldering temperature of the soldering iron through the transformer. Although this method can realize the adjustment of the temperature of the soldering iron, however, the The temperature adjustment operation of this method is complicated, and the accuracy of temperature control through the transformer is not high, which brings a lot of inconvenience to the welding use of the electric soldering iron; and the electric soldering iron consumes a lot of power.

In addition, the adjustment and display instrument of the electric soldering iron is often set outside, which is easy to be damaged, affects observation and use, and has a poor appearance.

Contents of the invention

In order to solve the above problems, the purpose of the present invention is to provide a new type of electric soldering iron, which can not only adjust and control the constant temperature, but also protect the adjustment and display instrument of the electric soldering iron, which is more convenient for use and operation, and has a beautiful appearance.

To achieve the above object, the technical solution adopted in the present invention is:

A temperature-adjustable energy-saving electric soldering iron includes a handle, a soldering iron tip, a power cord, a power switch, a power plug and a soldering iron core. The front end of the handle is fixedly connected to the soldering iron core in the soldering iron tip, and the rear end of the handle is connected to the power cord. The power cord is connected to a power switch, and the rear end of the power cord is connected to a power plug. The handle of the soldering iron is provided with an electric soldering iron temperature-regulating energy-saving function circuit module whose two ends are respectively connected to the power cord and the soldering iron core.

More preferably, the electric soldering iron temperature adjustment and energy saving functional circuit module includes an alternating current stepless voltage regulator circuit.

More preferably, the AC stepless voltage regulator circuit includes a potentiometer, a resistor, a capacitor, a triac and a triac, the capacitor is connected in parallel with the triac, the potentiometer and the resistor are connected in series, and the series connected The potentiometer and the resistor are connected in parallel with the bidirectional trigger diode, the remote ends of the bidirectional thyristor are respectively connected in parallel and series with the potentiometer and the bidirectional trigger diode, and one end of the capacitor is respectively connected in series with the resistor and the bidirectional trigger diode, and the near end of the capacitor and the bidirectional trigger diode are respectively connected in series. The proximal ends of the silicon controlled rectifiers are respectively connected in series with the heating wires arranged in the soldering iron core.

More preferably, the temperature-adjustable energy-saving electric soldering iron further includes an indicator light circuit, and the proximal end of the capacitor and the proximal end of the bidirectional thyristor are respectively connected in series with the indicator light circuit.

More preferably, the temperature-adjustable energy-saving electric soldering iron also includes a voltage divider/shunt resistor connected in parallel with the potentiometer, and the two ends of the voltage divider/shunt resistor are respectively connected in series with a resistor and a bidirectional thyristor connect.

More preferably, the handle is made of light-transmitting material or transparent material or translucent material.

This design aims at these defects, and realizes precise temperature control by setting temperature adjustment and energy saving; the temperature adjustment range is large, and the energy saving effect is good, especially for high-power electric soldering irons. By setting the voltmeter and thermometer in the handle of light-transmitting material or transparent material or translucent material, the instrument can be better protected, and the inside of the handle can be clearly seen through the light in the handle after power on, which is more convenient for operation and use , the appearance is more beautiful.

Description of drawings

FIG. 1 is a schematic diagram of the circuit structure of the present invention.

Fig. 2 is a structural schematic diagram of the present invention.

Explanation of the accompanying drawings:

RP1, potentiometer R2, resistor C1, capacitor VD, bidirectional trigger diode T, bidirectional thyristor R3, voltage divider/shunt resistor RL, heating wire LED1, indicator light R1, indicator light resistor 10, handle 20, soldering iron tip 21 , Connector 22, Metal Shell 23, Welding Tip 30, Power Cord 40, Soldering Iron Core 50, Temperature Adjustment and Energy Saving Functional Circuit Module 60, Adjustment Button.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings.

The temperature-adjustable energy-saving electric soldering iron includes a handle 10, a soldering iron tip 20, a power cord 30, a power switch, a power plug, a soldering iron core 40 and an adjustment button 60, and the soldering iron tip 20 includes a connector 21, a metal shell 22 and a soldering tip 23, The front end of the handle 10 is fixedly connected to the soldering iron core 40 in the soldering iron head 20, the rear end of the handle 10 is connected to the power cord 30, the power cord 30 is connected to the power switch, and the rear end of the power cord 30 is connected to the power plug. The handle 10 of the soldering iron is provided with Both ends are respectively connected to the power cord 30 and the electric soldering iron core 40 with a temperature-adjusting and energy-saving function circuit module 50 . The electric soldering iron temperature adjustment and energy saving function circuit module 50 includes an alternating current stepless voltage regulator circuit. The AC stepless voltage regulator circuit includes potentiometer RP1, resistor R2, capacitor C1, bidirectional trigger diode VD and bidirectional thyristor T, capacitor C1 is connected in parallel with bidirectional thyristor T, and potentiometer RP1 is connected in series with resistor R2 , the series connected potentiometer RP1 and resistor R2 are connected in parallel with the bidirectional trigger diode VD, the remote ends of the bidirectional thyristor T are respectively connected in parallel and series with the potentiometer RP1 and the bidirectional trigger diode VD, and one end of the capacitor C1 is connected with the resistor R2 and the bidirectional trigger diode respectively. The diode VD is connected in series, and the near end of the capacitor C1 and the near end of the triac T are respectively connected in series with the heating wire RL of the soldering iron core. The temperature-adjustable energy-saving electric soldering iron also includes a voltage divider/shunt resistor R3, which is connected in parallel with the potentiometer RP1, and the two ends of the voltage divider/shunt resistor R3 are respectively connected to the resistor R2 and the bidirectional thyristor. T connected in series.

The temperature-adjustable energy-saving electric soldering iron also includes an indicator light circuit, the near end of the capacitor C1 and the near end of the bidirectional thyristor T are respectively connected in series with the indicator circuit, and the indicator light LED1 is an LED energy-saving lamp.

The handle 10 is a hollow tube made of light-transmitting material or transparent material or translucent material.

Among them, the potentiometer RP1, the resistor R2, the capacitor C1, the bidirectional trigger diode VD and the bidirectional thyristor T constitute the AC stepless voltage regulator, and the potentiometer RP1, the resistor R2 and the capacitor C1 are the AC phase-shifting circuit; When the power is turned on, the 220V AC mains will charge the capacitor C1 through the potentiometer RP1 and the resistor R2; when the voltage across the capacitor C1 rises above the turning voltage value of the bidirectional trigger diode VD, the bidirectional trigger diode VD and the bidirectional controllable The silicon Ts are turned on one after another, and the heating wire RL of the electric soldering iron is energized to work; then, the bidirectional thyristor T turns itself off when the AC voltage crosses zero and reverses, and the capacitor C1 begins to reversely charge again, and the above process is repeated; In each period of , the bidirectional thyristor T conducts symmetrically once in the positive and negative half cycles; adjusting the resistance value of the potentiometer RP1 can change the charging rate of the capacitor C1, so that the conduction angle of the bidirectional thyristor T It also changes accordingly, so that the average voltage output at both ends of the heating wire RL of the electric soldering iron can be continuously adjusted between 0 and 220V, thus realizing the purpose of temperature adjustment of the electric soldering iron; the indicator light LED1 and the indicator light resistor R1 form an indicator light circuit .

After the indicator light or instrument is working, the light can pass through the handle, so that it can be read easily, and it is convenient to adjust and use the electric soldering iron.

The above-described embodiments are only to illustrate the technical concept and characteristics of the present invention, and its purpose is to allow those familiar with the art to understand the content of the present invention and implement it, and can not limit the protection scope of the present invention. Substantially made equivalent changes or modifications with similar effects shall fall within the protection scope of the present invention.

Claims (6)

1. a temp. controllable energy-saving electric iron, includes handle, solder horn, power line, power switch, attaching plug and flatironCore, the front end of handle is fixedly connected with the iron core in solder horn, the rear end connecting power line of handle, power line connects power supply and opensClose, end, power line rear end connects attaching plug, it is characterized in that: in the handle of this flatiron, be provided with two ends connecting power line respectivelyElectric iron energy saving temperature adjusting functional circuit module with iron core.

2. a kind of temp. controllable energy-saving electric iron according to claim 1, is characterized in that, described electric iron energy saving temperature adjusting meritCan comprise alternating current stepless voltage regulator circuit by circuit module.

3. a kind of temp. controllable energy-saving electric iron according to claim 2, is characterized in that, described alternating current stepless voltage regulatorCircuit comprises potentiometer, resistor, capacitor, bidirectional trigger diode and bidirectional triode thyristor, described capacitor and two-way controlledSilicon is connected in parallel, and potentiometer is connected with resistor in series, and the potentiometer of series connection and resistor are in parallel with bidirectional trigger diode to be connectedConnect, bidirectional triode thyristor far-end respectively with potentiometer, bidirectional trigger diode is in parallel is connected in series, capacitor one end respectively with resistanceDevice, bidirectional trigger diode are connected in series, and described capacitor near-end and bidirectional triode thyristor near-end arrange respectively with in iron coreHeating wire is connected in series.

4. a kind of temp. controllable energy-saving electric iron according to claim 3, is characterized in that, also comprises indicator light circuit, instituteState capacitor near-end and bidirectional triode thyristor near-end is connected in series with indicator light circuit respectively.

5. according to a kind of temp. controllable energy-saving electric iron described in claim 3 or 4, it is characterized in that, also comprise dividing potential drop/shunting electricityResistance, described dividing potential drop/shunt resistance and potentiometer are connected in parallel, described dividing potential drop/shunt resistance two ends respectively with resistor, two-way canControl silicon is connected in series.

6. a kind of temp. controllable energy-saving electric iron according to claim 5, is characterized in that, described handle be light transmissive material orTransparent material or trnaslucent materials.