CN107511553A - A kind of safe electric soldering iron - Google Patents
A kind of safe electric soldering iron Download PDFInfo
- Publication number
- CN107511553A CN107511553A CN201710726776.5A CN201710726776A CN107511553A CN 107511553 A CN107511553 A CN 107511553A CN 201710726776 A CN201710726776 A CN 201710726776A CN 107511553 A CN107511553 A CN 107511553A
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- CN
- China
- Prior art keywords
- power supply
- circuit
- touch
- control circuit
- electric
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- 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
-
- 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
-
- 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
- B23K3/04—Heating appliances
- B23K3/047—Heating appliances electric
- B23K3/053—Heating appliances electric using resistance wires
-
- 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
- B23K3/08—Auxiliary devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Resistance Heating (AREA)
Abstract
A kind of safe electric soldering iron, including electric iron body, there is an integrally formed shell housing upper end of electric iron body, it is made up of touch sheet and Switching Power Supply, touch circuit, control circuit, touch sheet is annular, touch sheet is bonded in the housing lower outer portion of electric iron body, Switching Power Supply, touch circuit, control circuit installation on circuit boards, circuit board is installed inside the housing, touch sheet and Switching Power Supply, is touched and is connected by wire between the heating resistance wire of circuit, control circuit, electric iron body.The present invention can effectively prevent personal injury accident caused by solder horn electric leakage in welding process, moreover it is possible to when preventing electric leakage, be soldered the damage of electronic component, operation is also convenient for.Based on above-mentioned, so the application prospect that the present invention has had.
Description
Technical field
The present invention relates to electrical equipment, particularly a kind of safe electric soldering iron.
Background technology
Electric iron passes through solder horn internal heat generation resistance wire and generated heat in electrical maintenance field and the extensive use of plant produced field
Melt solder stick, so as to which electronic component be welded on circuit boards.In electric iron practical operation, it is often necessary to which operator's left hand is used
Solder stick contact is soldered element, and right hand solder horn contacts solder stick so as to melt solder stick by electronic component firm welding.
Electric iron electricity consumption belongs to high voltage, is heat-producing device again, the insulation pottery of solder horn inner heat resistance wire outer layer after long-term use
Enamel coating, fragmentation can be easily produced because of long term high temperature degree, high voltage, so as to cause heating resistance wire and metal solder horn to contact,
Leaky is produced through solder horn, in such cases, when operator contacts solder stick with solder horn, easily causes electric shock accidents
Life is caused to injure, and electric leakage is also easy to cause the damage of electronic component, when especially welding FET, integrated circuit more
Easily there is the above situation；In practical operation, especially in maintenance industry, welding electronic component is not to need continuous welding,
After generally at welding one, certain interval of time is needed just to weld other places again, and the heating resistance wire of electric iron is actually simultaneously
After not needing laser heating, electric iron to be heated to certain temperature, even if being supplied after separated in time to solder horn internal resistance wire
Electricity, solder horn can also keep welding temperature within a certain period of time, melt solder stick well, between a little time in heating process
Every not interfering with its welding effect not only, moreover it is possible to play a part of preventing solder horn overtemperature（Solder horn overtemperature can reduce solder horn
Service life, and solder horn is because of the oxidizable welding effect that can not have reached of high temperature）.Based on above-mentioned, there is provided one kind can prevent
Accident of human electric shock and the safe electric soldering iron of electronic component damage when preventing from welding seem particularly necessary during welding.
The content of the invention
The drawbacks of in order to overcome in existing electric iron use, the invention provides touched in operator's left hand with solder stick
When being soldered electronic component, after operator holds the touch sheet of right hand contact hull outside of electric iron housing, mutually powered-down
Under the effect of road, control circuit can temporarily disconnect the power supply of electric iron internal heat generation resistance wire automatically, so as to when operator operates, iron
After iron head touches solder stick, it will not also cause operator's electric shock accidents even if electric iron electric leakage, and can prevent from being soldered electricity
The damage of sub- component, when operator need not weld or feel solder horn temperature it is inadequate when, after hand leaves touch sheet, electric iron
Heating resistance wire can obtain electric heating again, it is safe to use so as to reach, prevent be soldered electronic component damage, it is easy to operate
A kind of safe electric soldering iron.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of safe electric soldering iron, including electric iron body, it is characterised in that the housing upper end of electric iron body have an one into
The shell of type, it is made up of touch sheet and Switching Power Supply, touch circuit, control circuit, touch sheet is annular, and touch sheet is bonded in electricity
The housing lower outer portion of flatiron body, Switching Power Supply, touch circuit, control circuit installation on circuit boards, circuit board is arranged on outer
Inside shell, 220V AC powers are connected by wire respectively with Switching Power Supply AC power input both ends, Switching Power Supply positive pole electricity
Source output terminal is connected with touch circuit anode power input, control circuit the first cathode power supply input by wire, 220V
The two control power inputs in AC power the two poles of the earth and control circuit are connected by wire respectively, control circuit power supply output both ends
Connected respectively by wire with the heating resistance wire power input both ends of electric iron body, touch sheet and touch circuit signal input
End is connected by wire, is touched circuit power output end and is connected with control circuit the second cathode power supply input by wire, is opened
Powered-down source negative power supply output end and touch circuit negative power supply input, control circuit negative power supply input are connect by wire
Ground.
Described touch sheet is metal copper sheet.
Described Switching Power Supply is that 220V AC powers turn 5V DC power suppliers, and model is RPDZN/220V/5V, defeated
Go out electric current 300MA, all parts are arranged on a length 24.5mm, on height 15.3mm circuit board.
The touch circuit is made up of NPN triode and adjustable resistance, is connected therebetween by circuit board wiring, the poles of NPN tri-
Only, all three NPN triode colelctor electrodes connect Guan Yousan, first NPN triode emitter stage and second NPN triode base
Pole connects, second NPN triode emitter stage and the connection of the 3rd NPN transistor base, the 3rd NPN triode emitter stage and
Adjustable resistance one end connects, adjustable resistance other end ground connection.
The control circuit by NPN triode, PNP triode and relay group into, connected therebetween by circuit board wiring,
NPN triode colelctor electrode connects with PNP triode base stage, and PNP triode colelctor electrode connects with relay cathode power supply input,
Relay negative power supply input and NPN triode grounded emitter.
Present invention has the advantages that：The attaching plug of electric iron body in use, inserted 220V AC powers by the present invention
Socket, then, 220V AC powers are powered for the heating resistance wire of electric iron body interior, and heating resistance wire obtains electric heating.Weldering
In connecing, when operator's left hand touches soldered electronic component with solder stick, operator's right hand holds electric iron body housing
Hand move forward slightly, hand contact touch sheet after, interlock circuit effect under, control circuit can temporarily disconnect electric iron automatically
The power supply of body internal heat generation resistance wire, so as to which when operator operates, hand touches solder stick, also will not even if electric iron electric leakage
Cause operator's electric shock accidents, and can prevent from being soldered the damage of electronic component, when operator need not weld or feel
When solder horn temperature is inadequate, after hand leaves touch sheet, the heating resistance wire of electric iron body can obtain electric heating again.The present invention can have
Effect prevents personal injury accident caused by solder horn electric leakage in welding process, moreover it is possible to when preventing electric leakage, is soldered electronic component
Damage, operation is also convenient for.Based on above-mentioned, so the application prospect that the present invention has had.
Brief description of the drawings
The present invention is described further below in conjunction with drawings and examples.
Fig. 1 is schematic structural view of the invention.
Fig. 2 is circuit diagram of the present invention.
Embodiment
Shown in Fig. 1, a kind of safe electric soldering iron, including electric iron body 1, the housing 1-1 upper ends of electric iron body have one
Individual integrally formed shell 2, it is made up of touch sheet 3 and Switching Power Supply 4, touch circuit 5, control circuit 6, touch sheet 3 is annular,
Touch sheet 3 is bonded in the housing 1-1 lower outer portions of electric iron body, Switching Power Supply 4, touches circuit 5, control circuit 6 installed in electricity
On the plate of road, circuit board is arranged on inside shell 2, and 220V AC powers and the AC power of Switching Power Supply 4 input both ends pass through respectively
Wire connects, the cathode power supply output end of Switching Power Supply 4 and touch circuit 5 cathode power supply input, the positive pole of control circuit 6 first electricity
Source input is connected by wire, and the 6 two control power inputs in 220V AC powers the two poles of the earth and control circuit are respectively by leading
Line connects, and the heating resistance wire power input both ends of the power supply of control circuit 6 output both ends and electric iron body 1 pass through wire respectively
Connection, touch sheet 3 are connected with the signal input part of circuit 5 is touched by wire, touch the power output end of circuit 5 and control circuit 6
Second cathode power supply input is connected by wire, the negative power supply output end of Switching Power Supply 4 and the negative power supply input of touch circuit 5
End, the negative power supply input of control circuit 6 pass through wired earth.Touch sheet 3 is metal copper sheet.
Shown in Fig. 1, the present invention in use, the attaching plug of electric iron body 1 is inserted 220V AC Power supply sockets, in
It is that 220V AC powers are the heating resistance wire power supply inside electric iron body 1, heating resistance wire obtains electric heating.In welding, behaviour
When author's left hand touches soldered electronic component with solder stick, operator's right hand holds electric iron body housing 1-1 hand
Move forward slightly, after hand contact touch sheet 3, in the case where touching circuit 5 and acting on, control circuit 6 can temporarily disconnect electric iron automatically
The power supply of body internal heat generation resistance wire, so as to when operator operates, will not also cause operator to get an electric shock even if electric iron electric leakage
Accident, and can prevent from being soldered the damage of electronic component, as operator, need not to weld or feel solder horn temperature inadequate
When, after hand leaves touch sheet 3, the heating resistance wire of electric iron body 1 can obtain electric heating again.The present invention can effectively prevent from welding
Personal injury accident caused by hand iron electric leakage in journey, moreover it is possible to when preventing electric leakage, be soldered the damage of electronic component, operation is also square
Just.Based on above-mentioned, so the application prospect that the present invention has had.
Shown in Fig. 2, touch sheet M is metal copper sheet.Switching Power Supply A1 is that 220V AC powers turn 5V DC power suppliers,
Model is RPDZN/220V/5V, output current 300MA, and all parts are arranged on a length 24.5mm, height 15.3mm's
On circuit board.Touch circuit to be made up of NPN triode VT1, VT2, VT3 and adjustable resistance RP, connected therebetween by circuit board wiring
Connect, NPN triode there are three, all three NPN triode VT1, VT2, VT3 colelctor electrode connections, first NPN triode VT1
Emitter stage and second NPN triode VT2 base stages connection, second NPN triode VT2 emitter stage and the 3rd NPN triode
VT3 base stages connect, and the 3rd NPN triode VT3 emitter stage connects with adjustable resistance RP one end, another terminations of adjustable resistance RP
Ground.Control circuit is made up of NPN triode VT4, PNP triode VT5 and relay K, is connected therebetween by circuit board wiring,
NPN triode VT4 colelctor electrodes connect with PNP triode VT5 base stages, PNP triode VT5 colelctor electrodes and relay K cathode power supplies
Input connects, relay K negative power supplies input and NPN triode VT4 grounded emitters.
Shown in Fig. 2,220V AC powers and the Switching Power Supply A1 AC powers input pin of both ends 1,2 pin pass through wire respectively
Connection, the pin of Switching Power Supply A1 cathode power supplies output end 3 and touch circuit anode power input NPN triode VT1 colelctor electrodes, control
The first cathode power supply of circuit input PNP triode VT5 emitter stages processed are connected by wire, the output of Switching Power Supply A1 negative power supplies
4 pin and the touch circuit negative power supply input adjustable resistance RP other ends, control circuit relay K negative power supply inputs is held to lead to
Wire connection is crossed, 220V AC powers the two poles of the earth and the control power supplys of control power input relay K two of control circuit two are defeated
Enter tip side to connect by wire respectively, control circuit power supply output two normally-closed contact ends of both ends relay K and electric iron sheet
The heating resistance wire DZ power inputs both ends of body are connected by wire respectively, touch sheet M and touch circuit signal input NPN tri-
Pole pipe VT1 base stages are connected by wire, are touching circuit power output end NPN triode VT3 emitter stages and control circuit second just
Pole power input NPN triode VT4 base stages are connected by wire, the pin of Switching Power Supply A1 negative power supplies output end 4 and touch electricity
The road negative power supply input adjustable resistance RP other ends, control circuit negative power supply input relay K negative power supply inputs
Pass through wired earth.
Shown in Fig. 2, the present invention in use, the attaching plug of electric iron body is inserted 220V AC Power supply sockets, this
Carve, two normally-closed contact ends of relay K of control circuit heating resistance wire DZ power inputs both ends with electric iron body respectively
Connection, then, 220V AC powers are powered for the heating resistance wire DZ of electric iron body interior, and heating resistance wire DZ obtains electric hair
Heat.In Switching Power Supply, touch sheet and touch circuit：The 220V AC power access switch power supplys A1 pin of power input both ends 1 and 2
After pin, the pin of Switching Power Supply A1 power output ends 3 can export 5V dc sources and enter touch circuit anode power input, control electricity
Road the first cathode power supply input, in welding, when operator's left hand touches soldered electronic component with solder stick, operator
The hand that the right hand holds electric iron body housing moves forward slightly, and after hand contact touch sheet M, the induced signal of human body is through NPN tri-
After the amplification of pole pipe VT1, VT2, VT3 three-level, enter NPN triode VT4 base stages from NPN triode VT3 emitter stages output high level,
Its colelctor electrode output low level enters PNP triode VT5 base stages after NPN triode VT4 conductings, and then PNP triode VT5 is led
Logical, relay K obtains two control power input of electric adhesive and two normally-closed contact ends disconnect, because relay K two is often
Closed contact end is connected with the heating resistance wire DZ power inputs both ends of electric iron body by wire respectively, so, relay K is obtained
After electric adhesive, the heating resistance wire DZ of electric iron body can dead electricity be stopped, no longer generate heat that it is electric also to obtain, so as to operate
When person operates, it will not also cause operator's electric shock accidents even if electric iron electric leakage, and can prevent from being soldered electronic component
Damage, when operator need not weld or feel solder horn temperature it is inadequate when, after hand leaves touch sheet M, relay K can stop again
Adhesive, two control power input tip side and two normally-closed contact ends can be respectively communicated with again, the heating electric of electric iron body
Resistance silk DZ can obtain electric heating again.The present invention can effectively prevent personal injury accident caused by hand iron electric leakage in welding process, moreover it is possible to
When preventing electric leakage, the damage of electronic component is soldered, operation is also convenient for.Based on above-mentioned, so the application that the present invention has had
Prospect.
Fig. 2, touch in circuit：NPN triode VT1, VT2, VT3 model is 9014, and adjustable resistance RP specifications are 4.7K.Control
In circuit processed：NPN triode VT4 models are 9014, and PNP triode VT5 models are 9012, relay K be brand Omron/
OMRON/ G5V-2 miniature relay, it has two control power contact ends, two normally-closed contact ends, two normally opened contacts
End, in the present invention, two normally opened contact ends do not have to.
It should be noted that the present embodiment is preferred embodiments of the present invention, it is not intended to limit the invention, it is all in the present embodiment
Any modification, equivalent substitution and improvements etc. are done in spirit, should be included in the scope of the protection.
Claims (5)
1. a kind of safe electric soldering iron, including electric iron body, it is characterised in that there is an one housing upper end of electric iron body
The shell of shaping, it is made up of touch sheet and Switching Power Supply, touch circuit, control circuit, touch sheet is annular, and touch sheet is bonded in
The housing lower outer portion of electric iron body, Switching Power Supply, touch circuit, control circuit installation on circuit boards, circuit board is arranged on
Enclosure, 220V AC powers are connected by wire respectively with Switching Power Supply AC power input both ends, Switching Power Supply positive pole
Power output end is connected with touch circuit anode power input, control circuit the first cathode power supply input by wire,
The two control power inputs in 220V AC powers the two poles of the earth and control circuit are connected by wire respectively, the output of control circuit power supply
Both ends are connected by wire respectively with the heating resistance wire power input both ends of electric iron body, touch sheet and touch circuit signal
Input is connected by wire, touches circuit power output end and control circuit the second cathode power supply input is connected by wire
Connect, Switching Power Supply negative power supply output end and touch circuit negative power supply input, control circuit negative power supply input pass through
Wired earth.
2. a kind of safe electric soldering iron according to claim 1, it is characterised in that touch sheet is metal copper sheet.
3. a kind of safe electric soldering iron according to claim 1, it is characterised in that Switching Power Supply is that 220V AC powers turn 5V
DC power supplier, model are RPDZN/220V/5V, output current 300MA.
4. a kind of safe electric soldering iron according to claim 1, it is characterised in that touch circuit by NPN triode and adjustable electric
Resistance composition, is connected by circuit board wiring therebetween, and NPN triode has three, all three NPN triode colelctor electrode connections, the
One NPN triode emitter stage and second NPN transistor base connection, second NPN triode emitter stage and the 3rd NPN
Transistor base connects, and the 3rd NPN triode emitter stage connects with adjustable resistance one end, adjustable resistance other end ground connection.
5. a kind of safe electric soldering iron according to claim 1, it is characterised in that control circuit is by NPN triode, the poles of PNP tri-
Pipe and relay group by circuit board wiring into being connected, NPN triode colelctor electrode connects with PNP triode base stage, PNP therebetween
Transistor collector connects with relay cathode power supply input, relay negative power supply input and NPN triode emitter stage
Ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726776.5A CN107511553A (en) | 2017-08-23 | 2017-08-23 | A kind of safe electric soldering iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726776.5A CN107511553A (en) | 2017-08-23 | 2017-08-23 | A kind of safe electric soldering iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107511553A true CN107511553A (en) | 2017-12-26 |
Family
ID=60723723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710726776.5A Pending CN107511553A (en) | 2017-08-23 | 2017-08-23 | A kind of safe electric soldering iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107511553A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824927A (en) * | 2017-12-20 | 2018-03-23 | 深圳职业技术学院 | Anticreep electric iron |
| CN110279343A (en) * | 2019-07-22 | 2019-09-27 | 徐德 | A kind of hand-held electrostatic dust catcher |
| CN113695701A (en) * | 2021-09-29 | 2021-11-26 | 重庆利迈陶瓷技术有限公司 | Ceramic electric iron |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08112670A (en) * | 1994-10-11 | 1996-05-07 | Canon Inc | Soldering iron with temperature control function and device for controlling temperature of soldering iron |
| CN106216795A (en) * | 2016-08-15 | 2016-12-14 | 佛山市索尔电子实业有限公司 | A kind of Intelligent electric iron and control method thereof |
| CN106735689A (en) * | 2016-12-29 | 2017-05-31 | 佛山市顺德区陈村职业技术学校 | A kind of energy-saving electric iron |
| CN106825830A (en) * | 2017-03-22 | 2017-06-13 | 浙江大学 | A kind of new type of safe electric iron |
-
2017
- 2017-08-23 CN CN201710726776.5A patent/CN107511553A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08112670A (en) * | 1994-10-11 | 1996-05-07 | Canon Inc | Soldering iron with temperature control function and device for controlling temperature of soldering iron |
| CN106216795A (en) * | 2016-08-15 | 2016-12-14 | 佛山市索尔电子实业有限公司 | A kind of Intelligent electric iron and control method thereof |
| CN106735689A (en) * | 2016-12-29 | 2017-05-31 | 佛山市顺德区陈村职业技术学校 | A kind of energy-saving electric iron |
| CN106825830A (en) * | 2017-03-22 | 2017-06-13 | 浙江大学 | A kind of new type of safe electric iron |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824927A (en) * | 2017-12-20 | 2018-03-23 | 深圳职业技术学院 | Anticreep electric iron |
| CN110279343A (en) * | 2019-07-22 | 2019-09-27 | 徐德 | A kind of hand-held electrostatic dust catcher |
| CN113695701A (en) * | 2021-09-29 | 2021-11-26 | 重庆利迈陶瓷技术有限公司 | Ceramic electric iron |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20171226 |