WO2020234851A1

WO2020234851A1 - Tin-injection electronic soldering iron

Info

Publication number: WO2020234851A1
Application number: PCT/IB2020/054920
Authority: WO
Inventors: María Angélica Montoya Rodríguez; Javier Antonio Montoya Barragán
Original assignee: Montoya Rodriguez Maria Angelica
Priority date: 2019-05-23
Filing date: 2020-05-24
Publication date: 2020-11-26
Also published as: CO2019005252A1

Abstract

The invention relates to a portable pencil-shaped device with a tin-injection chamber system for electronic soldering that allows the required solder to be applied directly to the board to be soldered, since it has a containment chamber that releases the tin via a manual injection system. The device has an opening for loading tin pellets into the chamber, an electrical system that generates the heat to melt said tin and a manual injection system for applying the liquid tin through the opening in the tip at the required location. The device also has a pistol-shaped accessory or handle that can be adapted to the pencil in order to make it portable, since it contains a rechargeable battery, and thus to give the device another alternative use. In any case, the device can be used either way. The device can also be manufactured for alternating current only.

Description

ELECTRONIC TIN INJECTION SOLDER

DESCRIPTION

TECHNOLOGY SECTOR

This design belongs to the area of industry and technology. Within this branch of articles we find the soldering iron and automated robotic arms of the electronics industry.

Three patents were found alluding to the same subject, but one of them is a conventional soldering iron, and the other two refer to a soldering iron system with a handle and a spool of tin solder wire. These in their operation behave in a similar way as the soldering iron, only that they incorporate a welding spool that supplies the wire to the heat tip. Another characteristic against these latest designs is that the tin wire tends to bend, which prevents the function it offers from being efficiently fulfilled.

DETAILED DESCRIPTION OF THE INVENTION.

The electronic tin injection soldering iron is a device in the shape of a pencil with a chamber that contains tin or tin pellets which are melted thanks to a system of electrical resistances. Its structure is similar to a pencil and has a side loading cap for filling tin, a plunger contained within the cylinder that allows the opening of the solder exit hole and a removable metal tip with a hole that allows the exit of the solder. liquid tin. At the top it has a button that activates the opening of the plunger thanks to a mechanical spring and pins mechanism. The resistors heat a metal section that connects to the tip, causing the tin to melt. It has a cable and a power connector and the entire body except the tip is covered with insulating silicone to prevent burns.

When the button is pressed, the plunger rises allowing the liquid solder to enter the tip and exit through the opening, when the plunger is released, it pushes the liquid contained in the tip out. The metal parts that are in contact with the solder must be covered with non-stick material to prevent the solder from sticking and obstructing the correct flow out. By having interchangeable tips with different exit hole sizes, the thickness of the drop can be adjusted and by holding the button, a welding line can be made if necessary. It has an accessory or handle in the shape of a pistol grip that has a rechargeable battery inside. East accessory also facilitates the use of the soldering iron for people who want a faster soldering. Includes the connection cable from the handle to the pen and the batteries in the kit. When loaded it becomes portable. It can work with AC adapter. The pen can be connected directly to the socket with a cell phone adapter. The kit consists of the soldering iron, the handle, the cable for the handle to the soldering iron and the AC adapter. It can be used alone or with the accessory handle and can be made for AC and DC current.

The advantages of the electronic tin soldering iron are:

-Efficiency in the application of welds

-Saving in time and energy because the chamber system improves the diffusion of the temperature.

-Saving in quantities of tin that is used, due to its ease of dosing

-Accessibility to points where only one hand fits by integrating everything in a single body

-Ergonomic design and easy to use (the measurements of the drawing are only a reference of constitutive design, it can be conditioned to the most suitable shape in thickness, width and length)

-Because of its efficiency and low consumption of energy and tin, it reduces the incidence of global warming by promoting savings in materials, energy and time.

It is aimed at the global market for technicians, engineers, students and general domestic use.

Description of Figures

FIGURE 1. General view of the electronic tin injection soldering device adapted to the auxiliary handle.

FIGURE 2. Descriptive view of the interior of the electronic tin injection welding device. In this we find: 01 and 02. Removable tip with injection hole (It is a metallic, conical and hollow tip that allows heat to be transmitted and allows the tin to exit, it has a thread that fixes it to the cylinder (body of the soldering iron)) ; 03. Control plunger (It is a metal bar with a tip that fits into the outlet cone. It has a tab at the other end where the pin that moves it goes. Its function is to allow and block the outlet of the tin.); 04. Resistance (It is a conventional electrical resistance, which covers the lower end of the cylinder and its function is to heat and melt the tin); 05. Container cylinder (It is the body of the WELDER where the tin is contained and through whose center the plunger passes. It has a charging hole covered by a threaded cap); 06. Silicone cover (It is a heat insulating silicone film that covers the entire body of the WELDER except the outlet tip); 07. Charging cap (It is a threaded, heat-resistant plastic cap with a screw type head. Its function is to cover the cylinder hole and allow the charging of the tin); 08. AD DC power adapter (It is a conventional socket for alternating current where the power cable is connected); 09 Removable cover (It is the upper cover that covers the opening button system and the pins. It has a thread that holds it to the cylinder and can be removed for maintenance or repair of the system in case of breakdown); 10. Opening and closing button (It is an upper button that pushes the pin and raises the plunger to activate the welding output. It has a locking groove to prevent it from being ejected by the spring system); eleven . Spring (It is a small spring located at the base of the button and on the plunger its function is to return the button and plunger to their

original position closing the tin outlet); 12. Elevator pin (It is an angular lever type pin that raises the plunger by pressing the button. It is mounted on the cylinder cover and recovers its position thanks to the spring) and 13. Power cable (It is a power cable WITH AC ADAPTER DC for any alternating current connection, it can be flat or round terminals depending on the design of the socket. It is removable for more comfort and to facilitate its replacement in case of failure).

FIGURE 3. General view of the support handle for the tin injection soldering device in the form of a gun that includes: 01. Chamber to locate the welder; 02. Movable snap-fit piece; 03. Striker; 04. Rotation axis; 05. Trigger; 06. Spring; 07. Cable for portable use; 08. Battery; 09. Cylinder head; 10 Electronic charge and use control card; 1 1. Cover screw; 12. Charge and use mode button; 13. USB and charging socket; and 14. Direct use and charging adapter.

Claims

1. Pencil-shaped device with tin injection system that includes a tin containing chamber which, thanks to an electrical system of resistances in direct or alternating current (can be manufactured for both) that melts the tin and to an outlet hole , allows controlled injection of welding. It has an opening and closing plunger, a control button, a charging hole, an electrical resistance and interchangeable tips for the tin exit. It is fed by a power cord to a power port that is located on the side of the cylinder. The upper body of the cylinder is covered by a lid with a central hole through which the plunger moves and separates the control system from the rest of the apparatus. It has an accessory or handle in the shape of a pistol grip that makes it portable and helps the efficiency and speed of welding, this is connected with a connection cable from the handle to the pen. It has a button to start the injection of tin, which also allows controlled opening and closing. It has an external power adapter and batteries. In the case of the AC model, only a direct power cable is supplied from the socket to the input socket.

2. According to claim 1, the container chamber is composed of a cylinder traversed by a plunger with a loading hole and a threaded end where the outlet tip is placed.

3. According to claim 1, the outlet tip is a conical device made of heat conductive material, a thread to couple to the cylinder and an outlet hole, its outlet angle perfectly mates with the tip of the plunger allowing the closure or opening of the exit hole. The thread system allows the change of the tips in case of required outlet holes of different dimensions or in case of loss or damage.

4. According to claim 1, a resistance is installed at the lower end of the cylinder over a small heat-conducting portion thereof. This resistance is connected to the current through a socket and an adapter. The contact of the resistors with this conductive portion transmits the temperature to the tip and to the solder at the bottom, melting it.

5. According to claim 1, the activation system is composed of a button, a spring and pins that raise the plunger for the exit of the tin and return it to its original position for closure.

6. According to claim 1, the body of the ELECTRONIC INJECTION SOLDER OF TIN is covered in the part of the cylinder with insulating material from temperature and electricity. The activation system is covered by a threaded cap that supports the opening system and allows maintenance

7. According to claim 1, the charging hole is covered by a cap or screw cap where the tin is charged.

8. According to claim 1, the output control plunger is a nail-shaped device with an upper flange with which it is attached to the opening and closing pin and a conical tip that engages the output tip.

9. According to claim 1, the upper cover of the cylinder supports the plunger and the activation system for the welding output.

10. According to claim 1, the WELDER has an accessory in the form of a pistol grip that holds the welder's cylinder and has a portable charging system (batteries), storage and use of energy, allowing its activation with the same system OF PRESSURE OF THE UPPER BUTTON.