CN215658317U

CN215658317U - Improved electric soldering iron

Info

Publication number: CN215658317U
Application number: CN202120787512.2U
Authority: CN
Inventors: 胡长亮; 王飞龙; 戴启明
Original assignee: WUHAN YONGLI TECHNOLOGY CO LTD
Current assignee: WUHAN YONGLI TECHNOLOGY CO LTD
Priority date: 2021-04-17
Filing date: 2021-04-17
Publication date: 2022-01-28
Anticipated expiration: 2031-04-17

Abstract

The utility model discloses an improved electric soldering iron, and particularly relates to an electric soldering iron suitable for desoldering. The electric soldering iron comprises a handle and an electric soldering iron body, the electric soldering iron body comprises a heat conducting rod and an electric soldering iron head, one end of the heat conducting rod is connected with a power supply after being connected with the handle, the other end of the heat conducting rod is in threaded connection with the electric soldering iron head, the working end of the electric soldering iron head is a beveling flat surface, and a semicircular opening welding position is arranged on the beveling flat working end surface. According to the improved electric soldering iron, the semicircular opening welding position on the working end face of the soldering bit is aligned with the module and the device welding pin, the welding pin is semi-surrounded and tightly attached to heat, the contact area between the welding position of the soldering bit and the welding pin is increased, and the heat conduction is fast; the heat conducting rod is connected with the soldering bit through threads, so that the soldering bit can be conveniently and quickly replaced. The utility model can improve the efficiency and quality of the unsoldering.

Description

Improved electric soldering iron

Technical Field

The utility model relates to a welding device, in particular to an electric soldering iron suitable for module desoldering.

Background

The electronics industry has rapidly developed, and more modules and IC devices with a plurality of large-diameter bonding pins are being used in a large number of electronic products. The existing universal electric soldering iron in the electronic industry has sharp, knife, horseshoe and flat tip shapes, but because the size is small, the electric soldering iron is in point contact or line contact, only one welding pin can be heated and desoldered at one time, and the electric soldering iron cannot simultaneously heat and desolder a welding pin with a large diameter or a plurality of welding pins with large span. When a mould with a plurality of large-span and large-diameter welding pins or a device is disassembled, the mode that a module and the device are integrally taken down from a circuit board after tin suction guns for soldering tin are completely emptied by only adopting one welding hole and one welding hole can be adopted for disassembling the mould or the device. If the welding pin deviates from the middle of the welding hole during welding or the designed gap between the welding pin and the welding hole is small, the suction of the soldering tin in the welding hole is difficult under the condition, the disassembly operation wastes time and labor, and the efficiency is extremely low; in addition, repeated heating of the solder on the circuit board can also damage the circuit board and other components on the circuit board, thereby reducing the reliability of the electronic product.

Disclosure of Invention

In order to solve the problems of the desoldering device in the prior art, the utility model aims to provide a novel and improved electric soldering iron.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

the improved electric soldering iron comprises a handle and an electric soldering iron body, wherein the electric soldering iron body comprises a heat conducting rod and an electric soldering iron head, one end of the heat conducting rod is connected with a power supply after being connected with the handle, the other end of the heat conducting rod is in threaded connection with the electric soldering iron head, the working end of the electric soldering iron head is a beveling flat surface, and a semicircular opening welding position is arranged on the working end surface of the beveling flat surface.

Furthermore, a plurality of semicircular opening welding positions are arranged on the flat working end face of the soldering iron head in parallel, the diameter of each semicircular opening is matched with the outer diameter of a welding pin of the device, and the span between the semicircular opening welding positions is matched with the span between the welding pins of the device. During operation, the semi-circular opening welding position is used for tightly attaching and heating the welding pin in a semi-surrounding mode, the contact area between the welding position of the soldering bit and the welding pin is increased, and heat conduction is fast. One soldering iron head can simultaneously heat and desolder a group of a plurality of soldering pins, and after the tin is melted, the module and the device are separated from the soldering hole of the circuit board by self under the action of self weight. If the module and the device are provided with a group of welding pins, the disassembling operation can be completed by only one soldering iron head and one hand. If two groups of welding pins exist, two novel welding heads and two hands are needed to be used for desoldering. Three or more groups of welding pins are matched by a plurality of persons, but the welding pins of the module and the device are only two groups, and the number of the three or more groups is very small. According to the utility model, a plurality of welding points are heated once, the unsoldering efficiency is improved by 3-5 times compared with that of a universal manual electric soldering iron, and the unsoldering quality is improved by 6-8 times compared with that of the universal manual electric soldering iron.

Drawings

FIG. 1 is a schematic view of an example soldering iron body of the present invention;

fig. 2 is a three-dimensional exploded view of an example of a soldering iron body of the electric soldering iron of the present invention.

In the figure: 1 is a heat conducting rod, 2 is a soldering iron head, and 3, 4 and 5 are respectively semicircular opening welding positions arranged on the working end face of the soldering iron head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific examples described herein are intended to be illustrative only and are not intended to be limiting. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in figure 1, the body of the improved electric soldering iron of the embodiment of the utility model is composed of a soldering iron head 2 and a heat conducting rod 1, the front end of the soldering iron head 2 is designed with a plurality of semicircular open soldering positions, such as soldering positions 3, 4 and 5, and the specific open soldering positions can be determined according to the number of pins to be simultaneously desoldered. The front end of the heat conducting rod 1 is provided with a screw opening with the length of 5mm, the heat conducting rod 1 is screwed into a corresponding screw hole at the rear end of the soldering iron head 2, the heat conducting rod and the soldering iron head are assembled together, and then the rear end of the heat conducting rod 1 is provided with a handle to connect a soldering station power supply. During operation, start welding stage switch, soldering iron 2 preheats the back, and a plurality of soldering positions of soldering iron 2 aim at a plurality of welding pins, and a plurality of welding pins contact the welding position one to one simultaneously and heat promptly, wait to weld tin melting after, under the effect of module, device dead weight, the welding pin breaks away from by oneself in following the circuit board solder hole to the work of disassembling is accomplished. Because the front end of the heat conducting rod 1 is connected with the soldering iron head in a threaded mode, when the number of the desoldering welding pins is changed and different soldering iron heads need to be replaced, the heat conducting rod 1 does not need to be replaced, and only the soldering iron head 2 needs to be screwed down and replaced.

The principal features and advantages of the utility model have been shown and described. It will be appreciated by persons skilled in the art that the present invention is not limited by the embodiments described above.

Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a modified electric iron comprises handle and flatiron body, and the flatiron body includes heat conduction pole and soldering bit, and the power is connected behind the handle is connected to heat conduction pole one end, and the other end and the soldering bit of heat conduction pole are connected its characterized in that: the other end of the heat conducting rod is in threaded connection with the soldering bit, the working end of the soldering bit is a beveled flat surface, and a semicircular opening welding position is arranged on the beveled flat working end surface.

2. The improved electric soldering iron as claimed in claim 1, wherein the plurality of semicircular open soldering sites are arranged in parallel on the flat working end face of the soldering iron head, the diameter of the semicircular open soldering sites is matched with the outer diameter of the soldering pins of the device, and the span between the semicircular open soldering sites is matched with the span between the soldering pins of the device.