Fast heating intelligent leadless welding table controller and control method thereof

Abstract

The utility models relates to a fast temperature-rise intelligent controller for the leadless welding platform, of which the digital PID temperature-control is adopted via the one-board computer. The controller comprises a thermocouple amplifying circuit, a cold junction compensation circuit, a one-board computer, a temperature excursion and trouble detect circuit, a buzzer warning circuit, a relay, a relay driver circuit, a silicon controlled zero-cross trigger circuit, a LED nixie tube display circuit, a rectifying voltage regulator circuit and a keyboard entry circuit. The thermocouple amplifying circuit is composed of the resistances (R9 swung dash R12), a capacity (C4), and a operational circuit (IC2A); the cold junction compensation circuit consists of the resistances (R4 swung dash R8), a diode (D5) and a adjustable resistor (P1); the temperature excursion and trouble detect circuit is composed of the resistances (R13 swung dash R16), and a operational circuit(IC2B); the silicon controlled zero-cross trigger circuit is composed of the resistances (R21 swung dash R24), a silicon controlled optical coupler (IC4), a three-electrode tube (N4) and a silicon controlled rectifier (T) ; the LED nixie tube display circuit is composed of the resistances (R26 swung dash R35), the three-electrode tubes (N5 swung dash N7) and the nixie tubes (A1 swung dash A3).

Description

technical field [0001] The present invention relates to a fast-rising intelligent lead-free soldering station controller and a control method thereof, which relate to a rapid-heating intelligent lead-free soldering station controller and a control method using a single-chip microcomputer for digital PID temperature control. It belongs to the field of soldering electric iron. Background technique [0002] Electric soldering iron has a large range of applications in the industrial production of electronic industrial instruments and meters. For a long time, there has been a defect of slow heating and temperature difference. Especially with the wide application of lead-free soldering, the heating speed of traditional heating methods is far from satisfying. Welding requirements. Soldering irons suitable for lead-free soldering (including soldering irons) usually require a heating power of more than 90 watts, a smaller heat capacity, and a soldering iron tip with a faster heat co...

AI Technical Summary

Problems solved by technology

[0002] Electric soldering iron has a large range of applications in the industrial production of electronic industrial instruments and meters. For a long time, there has been a defect of slow heating and temperature difference. Especially with the wide application of lead-free soldering, the heating speed of traditional heating methods is far from satisfying. welding requirements

Soldering irons suitable for lead-free soldering (including soldering irons) usually require a soldering iron tip with a heating power

Images