KR20160014200A - Soldering iron - Google Patents

Soldering iron Download PDF

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Publication number
KR20160014200A
KR20160014200A KR1020140095960A KR20140095960A KR20160014200A KR 20160014200 A KR20160014200 A KR 20160014200A KR 1020140095960 A KR1020140095960 A KR 1020140095960A KR 20140095960 A KR20140095960 A KR 20140095960A KR 20160014200 A KR20160014200 A KR 20160014200A
Authority
KR
South Korea
Prior art keywords
heater
soldering tip
soldering
ceramic core
circumferential surface
Prior art date
Application number
KR1020140095960A
Other languages
Korean (ko)
Inventor
오갑석
김규현
김순택
Original Assignee
동명대학교산학협력단
주식회사엑소
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 동명대학교산학협력단, 주식회사엑소 filed Critical 동명대학교산학협력단
Priority to KR1020140095960A priority Critical patent/KR20160014200A/en
Publication of KR20160014200A publication Critical patent/KR20160014200A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/02—Soldering irons; Bits
    • B23K3/027—Holders for soldering irons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/02—Soldering irons; Bits
    • B23K3/03—Soldering irons; Bits electrically heated
    • B23K3/033—Soldering irons; Bits electrically heated comprising means for controlling or selecting the temperature or power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/02—Soldering irons; Bits
    • B23K3/03—Soldering irons; Bits electrically heated
    • B23K3/0338—Constructional features of electric soldering irons
    • B23K3/0353—Heating elements or heating element housings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)

Abstract

The present invention relates to a soldering iron, comprising: a body portion; A heater insertion portion coupled to the body portion and formed in a hollow cylinder shape from the center of the rear end side toward the front end side, a cylindrical ceramic core member, and a paste of refractory metal And a heater portion which is inserted into the heater inserting portion and is heated by power supply, the soldering tip including a heating resistor and a lead-out pattern formed on the ceramic insulator, wherein the ceramic sheet is surrounded by the periphery of the ceramic core, ; And a temperature sensing sensor for sensing a temperature of the front end portion, wherein the temperature sensing sensor has two through holes formed in the ceramic core material in the longitudinal direction, and a thermocouple element wire penetrates through the through hole And are connected to each other.

Description

Soldering iron

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a soldering iron, and more particularly, to a soldering iron that can increase the thermal conductivity of a heater provided in a soldering tip.

Generally, the soldering iron is used in the production site of the electronic company, the electronic board laboratory, the student lab, etc., and it is mainly used to make the power or circuit pattern on the printed circuit board (PCB) Or electric and electronic elements by fusing them with lead and fixing them.

The soldering iron is used for melting solder at the tip portion to perform soldering or to remove solder that has been soldered.

At this time, a heater portion for melting the solder is provided, and a cylindrical ceramic heater is used as the heater portion.

The ceramic heater is configured such that a heat generating resistor is buried in a ceramic body containing alumina as a main component and connected to a lead member that supplies power to the heat generating resistor through an electrode pad.

In the conventional soldering iron, a filler or an adhesive is filled between the soldering tip and the ceramic heater. However, since the filler or the adhesive has a problem of poor thermal conductivity, a filler or an adhesive is interposed between the soldering tip and the ceramic heater It is difficult to replace the soldering tip.

In addition, in the conventional ceramic heater, a heat generating resistor is used as a temperature sensor. However, since the heat generating resistor receives heat, the resistance value becomes inaccurate and the temperature can not be precisely detected.

In addition, if the soldering tip needs to be replaced only, replacement of the soldering tip is not easy as described above. Therefore, structural problems such as a ceramic heater and the like are also required to be replaced.

Korean Registered Patent Publication No. 0762212 (September 20, 2007)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to improve the structure and position of the temperature sensing unit for measuring the temperature of the soldering tip, And to operate it.

It is another object of the present invention to improve heat transfer efficiency by directly transmitting heat generated from a heater unit to a soldering tip without heat loss.

Yet another object of the present invention is to allow only the soldering tip to be replaced from the soldering iron.

According to an aspect of the present invention, there is provided a soldering iron comprising: a body; A heater insertion portion coupled to the body portion and formed in a hollow cylinder shape from the center of the rear end side toward the front end side, a cylindrical ceramic core member, and a paste of refractory metal And a heater portion which is inserted into the heater inserting portion and is heated by power supply, the soldering tip including a heating resistor and a lead-out pattern formed on the ceramic insulator, wherein the ceramic sheet is surrounded by the periphery of the ceramic core, ; And a temperature sensing sensor for sensing a temperature of the front end portion, wherein the temperature sensing sensor has two through holes formed in the ceramic core material in the longitudinal direction, and a thermocouple element wire penetrates through the through hole And are connected to each other.

According to the present invention, the inner circumferential surface of the soldering tip and the outer circumferential surface of the heater portion are coupled to each other in an interference fit manner or in a screw tightening manner.

The body part is provided with at least one first fastening hole passing through the body part and at least one first pressing part fastened to the first fastening hole and pressing the peripheral surface of the soldering tip.

At least one second pressing part is formed on the body part and at least one second pressing part is formed to penetrate the body part and the soldering iron tip at the same time, and at least one second pressing part fastened to the second fixing part presses the circumferential surface of the heater part .

According to the soldering iron according to the present invention having the above-described structure, the temperature sensing sensor is passed through the heater portion of the soldering iron to improve the temperature sensing response speed. In addition, It is transmitted to the detector, and the temperature can be precisely detected.

In addition, there is an effect that heat generated by the heater can be transferred to the soldering tip without heat loss, thereby increasing the heat utilization efficiency of the soldering iron.

The joint structure between the soldering tip and the heater portion is improved, and only the soldering tip can be replaced without replacing the heater portion.

1A and 1B are perspective views showing a ceramic heater according to the present invention, wherein FIG. 1A is a view showing a state before assembling, and FIG. 1B is a view showing a state after assembling.
2 is a sectional view showing the soldering iron according to the first embodiment of the present invention.
3 is a cross-sectional view showing a soldering iron according to a second embodiment of the present invention.
4 is a cross-sectional view showing a soldering iron according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1A to 4. FIG.

As shown in the drawing, the soldering iron according to the present invention includes a soldering tip 100 having a pointed tip 110, a heater 200 mounted on the soldering tip 100 for melting solder, And a body 400 coupled to a rear end of the soldering tip 100.

The soldering tip 100 is divided into a sharp conical part 121 and a cylindrical part 122. The cylindrical part 122 is formed so that its outer circumferential surface can be mechanically fixedly coupled to the body part 400 do.

A heater inserting portion 123 having a circular cross section and formed in a hollow cylinder shape from the center of the rear end toward the tip end is provided in the soldering tip 100.

At the front end of the heater inserting portion 123, receiving grooves 124 separately accommodating a temperature sensor 300 (a thermocouple) to be described later are formed to communicate with each other.

The heater insertion portion 123 is formed in the cylindrical portion 122 and the receiving groove 124 is formed in the conical portion 121 The receiving groove 124 is formed in a shape substantially similar to the conical portion 121 and the inner diameter of the receiving groove 124 is smaller than the inner diameter of the cross section of the heater insertion portion 123.

The heater inserted into the heater inserting portion 123 is a ceramic heater having thermal conductivity and is formed in a cylindrical shape and is used as a heating means for soldering iron.

The heater unit 200 includes a heat generating resistor 201 and a lead pattern 202 connected to the heat generating resistor 201. The heat generating resistor 201 and the lead pattern 202 are buried in the lead pattern, Hole conductor layer (not shown) formed on the inner surface of the through-hole 203 and a through-hole conductor layer (not shown) electrically connected to the through-hole conductor layer, An electrode pad pattern 205 formed on the surface of the ceramic body 204 and a lead member 206 electrically connected to the electrode pad pattern 205. [

And a ceramic sheet 208 in which the heat generating resistor 201 and the lead pattern 202 are formed by printing a paste of refractory metal on one surface, (208) surrounds the peripheral surface of the ceramic core member (207) and is closely contacted.

The lead member 206 is connected to the end portion of the drawing pattern 202 connected to the heat generating resistor 201.

The configuration of the ceramic heater as the heater unit 200 is known from Korean Patent Publication No. 0762212, and a detailed description thereof will be omitted.

According to the embodiment of the present invention, two through holes 10 are formed in the ceramic core material 207 of the ceramic heater in the longitudinal direction, and the thermocouple wire 310 penetrates through the through hole 10 And the thermocouple element wires 310 are connected to each other at the tip thereof to constitute a temperature sensor 300 for detecting the temperature of the soldering tip 100 heated by the ceramic heater.

Here, as the specification of the temperature sensor 300, a thermocouple K type known in the technical field of the present invention is preferably used.

The temperature sensing sensor 300 maintains a state in which the tips of the thermocouple element wires 310 are connected to each other while the thermocouple element wires 310 pass through the through holes 10, And the temperature of the soldering tip 100 is transmitted to the temperature sensor 300 without loss to enable precise temperature sensing.

 A power supply unit (not shown), which is not shown in the drawings, converts power supplied from a power source into a power suitable for operation of the soldering iron 100 and places it in the soldering tip 100 To the heater unit 200 and the temperature controller (not shown).

The temperature controller is electrically connected to the temperature sensor 300 disposed in the soldering tip 100 and turns on or off the power supply of the heater unit 200 according to the feedback from the temperature sensor 300 The temperature of the soldering tip 100 can be kept constant.

The coupling structure of the body part 400, the soldering tip 100 and the heater part 200 may be determined by the inner circumferential surface of the soldering tip 100 and the outer circumferential surface of the heater part 200, The surfaces of which are coupled to each other in an interference fit manner or the screw fastening portions 305 are provided so as to be coupled in a screw fastening manner.

At least one first fastening hole 301 passing through the body 400 is formed in the body 400 and fastened to the first fastening hole 301 so that the circumference of the soldering tip 100 At least one first pressing portion 302 for pressing the surface is provided.

At least one second fastening hole 303 passing through the body 400 and the soldering tip 100 is formed in the body 400 and fastened to the second fastening hole 303 And at least one second crimping portion 304 for crimping the circumferential surface of the heater portion 200 is provided.

Since the soldering tip 100 is easily heated by the ceramic heater since the structure is such that the soldering tip 100 and the heater 200 are coupled to each other without a gap therebetween, The temperature of the soldering tip 100 can be easily and precisely detected by the temperature detecting sensor 300.

Further, in a state where the heater unit 200 is left as it is, only the solder tip 100 that has been used can be easily replaced.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It should be understood that various modifications made by the person skilled in the art are also within the scope of protection of the present invention.

10: Through hole 100: Soldering tip
110: tip portion 121: conical portion
122: columnar part 123: heater insertion part
124: receiving groove 200: heater part
300: temperature sensor 301: first fastening hole
302: first pressing portion 303: second fastening hole
304: second crimping portion 305: screw crimping portion
310: thermocouple element line 400: body portion

Claims (4)

A body portion;
A heater insertion portion coupled to the body portion and formed in a hollow cylinder shape from the center of the rear end side toward the front end side, a cylindrical ceramic core member, and a paste of refractory metal And a heater part which is inserted into the heater inserting part and is heated by power supply, the soldering tip including a heat generating resistor and a lead-out pattern formed on the periphery of the ceramic core, ; And
And a temperature sensor for sensing a temperature of the front end portion of the soldering iron,
Wherein the temperature sensor comprises two through-holes formed in the ceramic core material in the longitudinal direction, and the thermocouple element wires penetrate the through-holes and are connected to each other.
The method according to claim 1,
Wherein an inner circumferential surface of the soldering tip and an outer circumferential surface of the heater portion are coupled to each other in an interference fit manner or in a screw tightening manner.
The method according to claim 1,
In the body portion,
At least one first fastening hole passing through the body is formed,
And at least one crimping portion that is fastened to the first fastening hole and presses the circumferential surface of the soldering tip.
The method of claim 3,
In the body portion,
At least one second fastening hole passing through the body part and the soldering tip at the same time,
And at least one crimping portion which is fastened to the second fastening hole and presses the circumferential surface of the heater portion.
KR1020140095960A 2014-07-28 2014-07-28 Soldering iron KR20160014200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140095960A KR20160014200A (en) 2014-07-28 2014-07-28 Soldering iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140095960A KR20160014200A (en) 2014-07-28 2014-07-28 Soldering iron

Publications (1)

Publication Number Publication Date
KR20160014200A true KR20160014200A (en) 2016-02-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140095960A KR20160014200A (en) 2014-07-28 2014-07-28 Soldering iron

Country Status (1)

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KR (1) KR20160014200A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100762212B1 (en) 2005-05-27 2007-10-01 쿄세라 코포레이션 Ceramic heater and iron for heating using the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100762212B1 (en) 2005-05-27 2007-10-01 쿄세라 코포레이션 Ceramic heater and iron for heating using the same

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E601 Decision to refuse application