KR20040018144A - Inductive heating soldering iron of temperature adjustion type - Google Patents

Abstract

PURPOSE: A soldering iron equipped with a temperature control electronic sensor is provided to make a soldering iron with simple structure and use the soldering iron longer. CONSTITUTION: A soldering iron includes a soldering iron tip(1), an electronic heating core(2), a temperature control sensor(3), a handle(4), and a controller(5). A heating member(11) is aligned around the soldering iron tip(1). The soldering iron tip(1) is formed at a rear end thereof with a hole(12). The temperature control sensor(3) is provided in the hole(12). The electronic heating core(2) is surrounded by a supporting pipe. The supporting pipe includes a temperature-resistance line layer, a shielding layer formed at an outer portion of the temperature-resistance line layer, and an outer supporting pipe formed at an outer portion of the shielding layer.

Description

Thermostatic Electronic Sensor Heating Iron {INDUCTIVE HEATING SOLDERING IRON OF TEMPERATURE ADJUSTION TYPE}

The present invention is included in the welding tool area and is especially a kind of electric iron. The present invention is a novel, rational, temperature-controlled electric iron with a simple structure, easy to use and long life.

Electric irons, welding tools, are very commonly used. In general, the iron tip is inserted directly between the heating core body, and is composed of an external or heat-resistant electric iron, and heat is heated to heat the heating core body to conduct heat to the iron tip. The temperature control system includes a method of controlling the temperature of the heating core and a method of controlling the temperature by contacting the middle part or the rear part of the iron tip. In use, the temperature difference between the welding tip of the iron tip and the sensor is relatively large, and the temperature difference of the soldering point is relatively large according to the size difference, the temperature compensation is slow, and the speed of continuous soldering is not fast unless the heat capacity is increased. There are two ways to improve heat capacity. The first method is to increase the soldering temperature. The substrate is likely to melt due to melting, and the solder is excessively oxidized or cold solder is likely to occur. In addition, the tip of the iron tip becomes overheated and dull, reducing the service life. The second method is to increase the heating efficiency by increasing the volume of the iron tip, which has a large loss of efficiency. Both of these methods increase the cost of use and are inconvenient in use, thus reducing work efficiency. In order to solder more safely, stably and reliably for small electronic component parts and large scale electronic integrated circuits, it is necessary to design a low temperature, high efficiency rapid temperature compensation type iron. Overseas, there is currently an electronic sensor heating iron, which uses electronic sensor eddy current heating technology. The drawback of this iron, which adjusts to the Curie temperature of the special alloy material, is that the temperature of the thermostat is fixed. In other words, one type of iron tip part is fixed at one type of temperature, and the heating part coated with special alloy is attached to the iron tip, and it is surrounded by a heating wire, and the sealing layer material and the external support tube are connected to make one. If the iron tip needs to be replaced, the heating core must be replaced. Therefore, the cost of use becomes high and the range of use becomes narrow.

An object of the present invention to overcome the shortage of existing electric iron is to provide an electric iron capable of controlling the temperature.

1 is a view showing the structure of a thermostatically controlled electronic sensor heating iron formed by an embodiment of the present invention.

2 is a partially enlarged view of the vicinity of the electronic heating core of the temperature-controlled electronic sensor heating iron formed by the embodiment of the present invention.

3 is a view showing a support tube of a thermostatically controlled electronic sensor heating iron formed by an embodiment of the present invention.

4 is a circuit diagram of a temperature controlled electronic sensor heating iron formed by an embodiment of the present invention.

** 〈Explanation of symbols for main parts of drawings〉

1: iron tip 11: heating element

12: hole 2: electronic heating core

21: support tube 211: groove

22: high temperature border 23: sealing layer

24: outer support tube 25: blocking edge

3: temperature control sensor 4: handle

5: Controller 51: Temperature Control Knob (KNOB)

Technical solutions adopted by the present invention to achieve the above objects are as follows.

The thermostatically controlled electronic sensor heating iron consists of a soldering iron tip, an electronic heating core, a temperature control sensor, a handle and a controller. A heating element is located on the outside of the iron tip and a hole is located at the rear end of the iron tip to install the sensor in the hole. The skeleton of the electronic heating core is made of a single support tube, and the outside of the support tube is wound around a high temperature line. Outside the high temperature resistant line, a sealing layer is made and the outside of the sealing layer becomes an outer support tube.

One step further: The above-mentioned support tube of the heating core is a stainless steel tube which is grooved at the edge of the high temperature wire.

A further step: A ferromagnetic special alloy layer is also included on the outer layer of the iron tip.

One step further: The support tube of the heating core mentioned above is a non-magnetic non-metal tube such as corundum.

One step further: The sealing layer described above is a non-closed ferromagnetic metal flake.

Further part: The above-mentioned outer support tube of the heating core is a magnetic or weak magnetic stainless steel tube which is spot welded to the head.

One step further: The inside of the hole drilled in the rear end of the iron tip is pulled out and closed with a stainless steel tube with one end forming a blind hole.

The above-mentioned sensor is made by arc welding or spot welding on a thermocouple stage and then inserts a stainless steel tube into a shrink tube sheath and connects it to a heating core frame using a spring at the back to make firm contact with the iron tip.

One step further: The above-mentioned sensor wire, ground wire, and heating core connection wire pass through the contact wire board installed in the handle, and the end of the wire is connected with the connector and controller on the connection wire, and the temperature control knob for setting and adjusting the operating temperature on the controller. (knob) is present.

Hereinafter, the temperature-controlled electronic sensor heating iron configured as an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, the temperature controlled electronic sensor heating iron is composed of a soldering iron tip (1), an electronic heating core (2), a temperature control sensor (3), a handle (4) and a controller (5). The iron tip 1 is made of pure copper (동) and the outer layer is coated with a ferromagnetic special alloy layer to create a heat generating element 11 and a protective layer to quickly generate heat and good thermal conductivity. The hole 12 is as close as possible to the welding tap of the iron tip 1, the inside of the hole 12 is pulled out so that one end is blocked by a stainless steel tube forming a blind hole, so that the iron tip 1 can be easily exchanged. The sensor 3 is not damaged, and it is prevented from being overheated and unable to be pulled out. This structure also has the advantage of being able to measure the temperature of the iron tip quickly. The skeleton of the electronic heating core (2) is a single support tube (21) to make it easy to make a high temperature wire frame (22). The control part makes a high frequency alternating current electric field and makes a high frequency alternating magnetic field while passing through the line edge 22, and may use a metal tube that penetrates a non-magnetic nonmetallic tube such as a corundum tube or a groove 211 such as a stainless steel tube. In most cases, the alternating magnetic field is converted into thermal energy by generating a high frequency alternating eddy current at the surface of the electronic iron tip (1). The sealing layer 23 uses non-closed ferromagnetic metal flakes, and is used for preventing transmission of magnetic force, reducing magnetic leakage, and occurrence of electromagnetic interference. The outer support tube 24 of the heating core 2 uses a nonmagnetic or weak magnetic stainless steel tube, and the head portion is spot welded to the blocking edge 25. Fix the iron tip (1) to the handle part with the tube and connecting screw. The sensor 3 is arc-welded or spot-welded to a thermoelectric cell stand, and forms the shape which fits a stainless steel tube to a shrink tube cover, and also extends to the welding tip part of the iron tip 1. The rear part is connected to the heating core frame by using a spring to make tight contact with the iron tip to further secure the temperature measurement accuracy. The role of the ground wire spot-welded on the outer support tube 24 is to prevent static electricity from collecting on the iron tip 1 and to prevent damage to electronic components during use. The sensor wire, ground wire, and heating core connection wire pass through the contact wire board installed in the handle 4 so that the end of the wire is connected with the connector 5 and the controller 5 on the connection line. Temperature control knob 51 on the controller serves to set and adjust the use temperature.

As described above, the present invention generates an AC eddy current and converts it into thermal energy, thereby increasing heat capacity, providing a low temperature and high efficiency rapid temperature compensation type iron, and allowing the heating core and the iron tip to be separated. It is possible to replace only the bay, thereby reducing the cost of use.

Claims (8)

In the thermostatically controlled electronic sensor heating iron comprising a iron team (1), an electronic heating core (2), a temperature control sensor (3), a handle (4) and a controller (5), The outside of the iron tip 1 has a heating element 11, the rear end of the iron tip 1 has a hole 12, The sensor 3 is installed inside the hole 12, The skeleton of the electronic heating core 2 is made of one support tube 21, The outside of the support tube 21 is made to surround the high temperature line (耐高溫 線) border 22, The sealing layer 23 is installed on the outside of the high temperature resistant wire frame 22, The temperature control type electronic sensor heating iron, characterized in that the outer support tube 24 on the outside of the sealing layer (23). The method of claim 1, The support tube (21) of the heating core (2) is a temperature-controlled electronic sensor heating iron, characterized in that the stainless steel tube grooved at the edge around the high temperature wire (22). The method of claim 1, The heating element 11 is a temperature-controlled electronic sensor heating iron, characterized in that the ferromagnetic special alloy layer applied to the iron tip (1) outer layer. The method of claim 1, The support tube 21 of the heating core 2 is a temperature-controlled electronic sensor heating iron, characterized in that the non-magnetic non-metallic tube, such as corundum tube. The method of claim 1, The sealing layer 23 is a temperature controlled electronic sensor heating iron, characterized in that the non-closed ferromagnetic metal flakes. The method of claim 1, The external support tube (24) of the heating core (2) is a non-magnetic or weak magnetic temperature control electronic sensor heating iron, characterized in that the stainless steel pipe spot welding the blocking edge 25 to the head. The method of claim 1, The hole 12 in the rear end of the iron tip 1 is a stainless steel tube that pulls the inside to form a blind hole at one end, The sensor is arc-welded or spot-welded to a thermocouple, and then the stainless steel tube is inserted into the contraction tube sheath, and the spring is connected to the heating core frame by using a spring to make a tight contact with the iron tip. Temperature controlled electronic sensor heating iron. The method of claim 1, The sensor wire, ground wire and heating core connecting wire pass through the contact board installed in the handle 4, and the end of the wire is connected with the connector and the controller 5 on the connection line, and the temperature control knob 51 on the controller is used. Temperature controlled electronic sensor heating iron, characterized in that it serves to set and adjust.