Automatic constant-temperature electric soldering iron

An electric soldering iron and constant temperature technology, which is applied in the field of electronic technology and temperature control, can solve problems such as easy burning of the soldering iron tip, limited use time, and poor use of the electric soldering iron.

Inactive Publication Date: 2012-11-21
周芸
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experience tells us that most of the time when the soldering iron is working is in the waiting state of continuous energization and heating, and the actual use time is very limited. Too long and the temperature of the soldering iron is too high; in addition, the temperature of the soldering iron is too high not only easy to burn the tip of the soldering iron, but also the burnt tip of the soldering iron is not easy to eat tin, making the soldering iron very difficult to use

Method used

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  • Automatic constant-temperature electric soldering iron

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Embodiment Construction

[0011] According to attached figure 1 The present invention can be realized by implementing the circuit working principle diagram of the shown automatic constant temperature electric soldering iron and the description of the accompanying drawings and the technical requirements of the components and parts described below.

[0012] Selection of components and their technical parameters

[0013] KS is a bidirectional trigger diode, the selected model is BCR3AM or 2CTS;

[0014] SCR is a bidirectional thyristor, and the selected model is 3CTSI or DB3;

[0015] The resistance of the thermistor Rt is 5.1KΩ, and the thermistor Rt requires the use of a thermistor with a positive temperature coefficient;

[0016] The resistor is RTX-1 type metal film resistor with a power of 1W, the resistance value of resistor R1 is 5.1KΩ; the resistance value of linear potentiometer RP is 22KΩ;

[0017] Capacitor C1 is made of polyester capacitor with a capacity of 0.1μF, and the withstand voltage...

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Abstract

The invention discloses an automatic constant-temperature electric soldering iron which is characterized in that a circuit of the automatic constant-temperature electric soldering iron consists of 220V alternating current, a capacitance resisting phase-shift circuit, a bidirectional thyristor control circuit and an electric soldering iron socket CZ. Various electric soldering irons on sale in market do not have fundamental improvement. Since an electric soldering iron during working is continuously switched on and heated in the waiting state most of the time and the real utilizing time is very limited, oxidizing burnout of a soldering head and burnout of a soldering core are due to overlong conduction time and overhigh temperature of the electric soldering iron. By the aid of the automatic constant-temperature electric soldering iron, the problem can be solved effectively since the temperature of the automatic constant-temperature electric soldering iron can be set as required and can be kept constant all the time, and burnout of the electric soldering iron due to overhigh temperature can be avoided. In addition, the circuit of the electric automatic constant-temperature electric soldering iron is simple and practical. The integrated automatic constant-temperature electric soldering iron is developed and formed by combining the control circuit with the electric soldering iron.

Description

technical field [0001] The invention belongs to the technical fields of electronic technology and temperature control, and relates to an automatic constant temperature electric soldering iron. Background technique [0002] The variety of soldering irons on the market has remained largely unchanged over the years. During the repair of various electrical appliances and electronic equipment, it is usually necessary to use instruments to measure circuits, analyze faults, and organize components. During this period, the electric soldering iron must always be powered on for use at any time. Experience tells us that most of the time when the soldering iron is working is in the waiting state of continuous energization and heating, and the actual use time is very limited. Too long and the temperature of the electric soldering iron is too high; in addition, the temperature of the electric soldering iron is too high not only to burn the soldering iron tip easily, but also the burnt ir...

Claims

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Application Information

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IPC IPC(8): B23K3/03
Inventor 周芸
Owner 周芸
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