TWM522797U - Welding-gun head - Google Patents

Description

Tip

The present invention relates to a welding device, and in particular to a soldering iron tip.

In order to enhance the functionality of the soldering station, a soldering station with a sensor has been developed on the market. The principle is that one end of the sensing line is connected to the welding head of the welding station, and the other end is connected to the signal receiving device to make the welding. At the same time, the solder joint related information is received through the sensing line. Generally, the sensing lines are mostly external or internal. Specifically, the external sensing type is connected to the welding head at one end, and is connected to the receiving device through the outer surface of the welding head. In this way, the wire is directly exposed to the surface and is welded. The operator brings some inconvenience, and at the same time, the sensing line is easy to fall off, and the other is to set the sensing line inside the welding head to protect the sensing line. Generally, the sensing line is disposed inside the welding head. Only limited protection is applied to the sensing wire. When the welding head is replaced, it is often necessary to rotate the welding head continuously to adjust the connection between the sensing wire connector and the connector in the handle, so that the sensing wire is easily pulled off or severely damaged. Deformation; and the collection end of the sensing line is far from the surface of the welding head, and the temperature of the collected welding head may be deviated.

In addition, with the development of the microelectronics industry, the demand for small or micro soldering irons continues to increase, while small or micro soldering irons require higher structural design, not only to take into account temperature acquisition accuracy, but also to protect the sensing lines while still Can not Increase the overall diameter.

The technical problem to be solved in this creation is: in order to overcome the insufficiency of the existing electric soldering iron to meet the correct collection of the welding head temperature, the protection sensing line and the miniaturization of the soldering iron, the present invention provides a soldering iron head with a diameter of less than 5 mm and collection. The temperature is precise and stable.

The technical solution adopted by the present invention to solve the technical problem is: a soldering iron head comprising a welding head, an outer tube and a sensing wire; wherein the welding head is installed at one end of the outer tube, and the sensing wire is disposed inside the outer tube a side of the welding head is provided with a groove or a through hole, and one end of the sensing wire is taken out from the groove or the through hole and is in contact with the outer surface of the welding head, and is welded to the outer tube to form a thermocouple. At the warm end, the sensing wire and the outer tube respectively constitute two poles of the thermocouple.

a first wire is disposed in the outer tube, and a metal piece is mounted on an end of the outer tube away from the welding head, the outer tube is insulated from the metal piece, one end of the first wire is connected to the metal piece, and the first wire is another One end is connected to the sensing wire.

The outer tube has an electric heating wire, and an end of the outer tube away from the welding head is further provided with an electrode lead-out assembly, the outer tube is insulated from the electrode lead-out element, and one end of the electric heating wire is led out through the electrode lead-out element, and the electric heating wire is The other end is connected to the first wire.

The electrode lead-out element includes a first metal tube and a second metal tube, the outer tube is insulated from the first metal tube, and the second metal tube is disposed inside the outer tube and the first metal tube, the heating wire One end is connected to the second metal tube, and the second metal tube is connected to the inner wall of the first metal tube, and the first metal tube is insulated from the metal member. The individual pipe fittings are interlocked to enhance the overall structural strength. The second metal tube can extend all the way to the second insulating member to further improve the structure Degree, so that the soldering iron is not easy to break after miniaturization.

The outer tube further has an insulating tube, the first metal wire is disposed in the insulating tube, the electric heating wire is disposed outside the insulating tube; the second metal tube is sleeved outside the insulating tube, and the outer tube and the outer tube A metal tube is connected through a first insulating member, and the first metal tube is connected to the metal member through the second insulating member.

The first metal pipe and the metal piece are copper pipes, the second metal pipe is a stainless steel pipe, and the first insulating member and the second insulating member are plastic pipes.

The insulating tube is a porcelain tube.

The first wire is made of the same material as the sensing wire, and the sensing wire is different from the material of the outer tube.

The sensing wire has a larger wire diameter than the first wire.

The first wire and the sensing wire are nickel-chromium wires, and the outer tube is a stainless steel tube.

The benefit of this creation is: the tip of the creation, the sensing wire directly contacts the surface of the welding head, so that the collected temperature is close to the actual temperature of the welding head, and the reaction speed to the temperature is fast; and the temperature sensing part and the electric heating The filament heating parts are fused together to miniaturize the entire tip, and the strength of the entire tip is still high and not easily broken.

1‧‧‧Metal parts

2‧‧‧Second insulation

3‧‧‧First metal tube

4‧‧‧First insulation

5‧‧‧External management

6‧‧‧First wire

7‧‧‧Second metal tube

8‧‧‧Insulation tube

9‧‧‧Electrical wire

10‧‧‧welding head

11‧‧‧Sense wire

12‧‧‧through hole

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Figure 1 is a schematic cross-sectional view of a preferred embodiment of the tip of the present invention.

Fig. 2 is a partial enlarged view of a portion A in Fig. 1.

Fig. 3 is a view showing the outline of a preferred embodiment of the tip of the present invention.

This creation will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, and only the basic structure of the present creation is illustrated in a schematic manner, so that it only shows the composition related to the present creation.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a soldering iron tip of the present invention comprises a welding head 10 , an outer tube 5 and a sensing wire 11 ; wherein the welding head 10 is mounted on the outer tube 5 At one end, the sensing wire 11 is disposed inside the outer tube 5, and a through hole 12 is defined in the side of the welding head 10. One end of the sensing wire 11 is taken out from the through hole 12 and is in contact with the outer surface of the welding head 10, and the sensing wire 11 and the welding head 10 are One end of the outer surface contact is welded to one end inner wall of the outer tube 5 to form a temperature measuring end of the thermocouple, and the sensing wire 11 and the outer tube 5 respectively constitute two poles of the thermocouple.

Of course, a groove may be formed at the tail end of the horn 10, the groove extends to the side of the horn 10, and one end of the sensing wire 11 is drawn out from the inside of the outer tube 5 through the groove and outside the horn 10 Surface contact.

A first wire 6 is disposed in the outer tube 5, and a metal member 1 is mounted on an end of the outer tube 5 away from the welding head 10. The outer tube 5 is insulated from the metal member 1, and one end of the first wire 6 is connected to the metal member 1, The other end of a wire 6 is connected to the sensing wire 11. The first wire 6 is made of the same material as the sensing wire 11, and the sensing wire 11 and the outer tube 5 are made of different materials. In this way, the conductors of two different materials form a closed loop, forming a thermocouple. That is, the metal member 1, the first metal wire 6, the sensing wire 11 and the outer tube 5 together form a thermocouple circuit. In this embodiment, the first wire 6 and the sensing wire 11 are nickel-chromium wires, and the outer tube 5 is The stainless steel tube; the outer tube 5 is the negative pole of the thermocouple, the sensing wire 11 is the positive electrode of the thermocouple, and the sensing wire 11 is larger than the wire diameter of the first wire 6.

An outer heating tube 9 is disposed in the outer tube 5, and an electrode lead-out assembly is further disposed at an end of the outer tube 5 away from the welding head 10. The outer tube 5 is insulated from the electrode lead-out member, and the electrode lead-out member includes a first metal tube 3 and a second metal. Tube 7, outer tube 5 and The first metal pipe 3 is arranged side by side, the second metal pipe 7 is disposed inside the outer pipe 5 and the first metal pipe 3, and one end of the heating wire 9 is connected to the second metal pipe 7, and the second metal pipe 7 and the first metal pipe are connected. 3 The inner wall is connected, and the first metal pipe 3 is insulated from the metal member 1. One end of the heating wire 9 is led out through the first metal pipe 3, and the other end of the heating wire 9 is connected to the first wire 6. The second metal tube 7 in this embodiment extends all the way to the inside of a second insulating member 2 to further enhance the structural strength.

The outer tube 5 also has an insulating tube 8 which is a porcelain tube. The first wire 6 is disposed in the insulating tube 8 , and the heating wire 9 is disposed outside the insulating tube 8 ; the second metal tube 7 is sleeved outside the insulating tube 8 , and the outer tube 5 and the first metal tube 3 are transmitted through the first The insulating members 4 are connected, and the first metal pipe 3 is connected to the metal member 1 through the second insulating member 2. In this embodiment, the first metal tube 3 and the metal member 1 are copper tubes, the second metal tube 7 is a stainless steel tube, and the first insulating member 4 and the second insulating member 2 are plastic tubes.

The above description is only the best embodiment of the present invention, but the structural features of the present creation are not limited thereto, and any one who is familiar with the skill of the art can easily change or modify it in the field of creation. In the following patent scope of this case.

1‧‧‧Metal parts

2‧‧‧Second insulation

3‧‧‧First metal tube

4‧‧‧First insulation

5‧‧‧External management

6‧‧‧First wire

7‧‧‧Second metal tube

8‧‧‧Insulation tube

9‧‧‧Electrical wire

10‧‧‧welding head

11‧‧‧Sense wire

12‧‧‧through hole

Claims (10)

A soldering iron head includes a welding head, an outer tube and a sensing wire, and the welding head is mounted at one end of the outer tube, wherein the sensing wire is disposed inside the outer tube, and a groove or a side is formed on the side of the welding head a through hole, one end of the sensing wire is drawn from the groove or the through hole and is in contact with the outer surface of the welding head, and is welded with the outer tube to form a temperature measuring end of the thermocouple, the sensing wire and the outer tube The two poles of the thermocouple are respectively formed. The soldering iron head according to claim 1, wherein the outer tube is provided with a first metal wire, and one end of the outer tube away from the welding head is mounted with a metal piece, and the outer tube is insulated from the metal piece, the first metal One end of the wire is connected to the metal member, and the other end of the first wire is connected to the sensing wire. The soldering iron head according to claim 2, wherein the outer tube has an electric heating wire, and an end of the outer tube away from the welding head is further provided with an electrode lead-out assembly, and the outer tube is insulated from the electrode lead-out assembly, the electric heating wire One end of the heating wire is led out through the electrode lead-out element, and the other end of the heating wire is connected to the first wire. The soldering iron tip of claim 3, wherein the electrode lead-out element comprises a first metal tube and a second metal tube, the outer tube is insulated from the first metal tube, and the second metal tube is worn. The first metal tube is connected to the inner surface of the first metal tube, the second metal tube is connected to the inner wall of the first metal tube, and the first metal tube is insulated from the metal member. The soldering iron head according to claim 4, wherein the outer tube further has an insulating tube, the first metal wire is disposed in the insulating tube, and the electric heating wire is disposed outside the insulating tube; The two metal tubes are sleeved outside the insulating tube, and the outer tube is connected to the first metal tube through a first insulating member, and the first metal tube is connected to the metal member through a second insulating member. The soldering iron head according to claim 5, wherein the first metal tube and the metal member are copper tubes, the second metal tube is a stainless steel tube, and the first insulating member And the second insulating member is a plastic tube. The soldering iron head according to claim 5, wherein the insulating tube is a porcelain tube. The soldering iron head according to claim 2, wherein the first metal wire and the sensing wire are made of the same material, and the sensing wire and the outer tube are made of different materials. The soldering iron tip of claim 8, wherein the sensing wire has a larger wire diameter than the first wire. The soldering iron head according to claim 8, wherein the first wire and the sensing wire are nickel-chromium wires, and the outer tube is a stainless steel tube.