Electric iron

Abstract

The invention discloses an electric soldering iron, comprising a soldering iron tip, a vortex heating core and a thermocouple for sensing the temperature of the soldering iron tip; wherein, a blind hole is arranged at the rear end of the soldering iron tip; the vortex heating core comprises an iron pipe body and a coil wound on the iron pipe body; a heat pipe for transferring heat to the soldering iron tip is arranged in the iron pipe body; the outer wall of the heat pipe is tightly contacted with the inner wall of the iron pipe body, and a first end of the heat pipe is in interference fit with and inserted in the blind hole; the thermocouple is arranged through the heat pipe, and a detecting end is propped on the hole bottom surface of the blind hole. Since the detecting end of the thermocouple is arranged on the hole bottom of the blind hole at the tail end of the soldering iron tip, the electric soldering iron has the advantages of accurately detecting and controlling the temperature at the front end of the soldering iron tip in a better way, avoiding the aging of soldering iron tip due to excessive temperature, meeting the temperature requirements of different tin soldering, replacing the soldering iron tip without replacing heating core since the soldering iron tip and the heating core are detachable, and reducing the maintenance cost.

Description

technical field [0001] The invention relates to an electric soldering iron, in particular to an electric soldering iron heated by eddy current. Background technique [0002] Most popular soldering stations in the market now use ceramic heating cores to heat through heat conduction, and thermocouples are built into the ceramic heating cores. The advantage of this method is that the process is stable and the cost is low. The disadvantages are low thermal efficiency, inaccurate thermocouple signal, and insensitive response. The temperature recovery speed is slow, and the strict lead-free soldering requirements cannot be met. [0003] For lead-free soldering, a domestic company has launched a soldering station, which uses electromagnetic induction eddy current heating technology, which has greatly improved thermal efficiency. Finally, an oxide layer is formed at the bottom of the hole, and the temperature measurement signal is sluggish, inaccurate and unstable. In addition, ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an electric soldering iron, which is used to solve the problems of large temperature error of the welding front end of the soldering iron tip detected by the existing electric soldering iron and high replacement cost of the soldering iron tip

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