CN105382371B

CN105382371B - A kind of electric iron

Info

Publication number: CN105382371B
Application number: CN201510989113.3A
Authority: CN
Inventors: 周挺巧
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-28
Filing date: 2015-12-28
Publication date: 2018-01-02
Anticipated expiration: 2035-12-28
Also published as: CN105382371A

Abstract

The present invention relates to a kind of electric iron of welding.The electric iron includes insulation lever, electric soldering bit, conductive core pole and insulation core print seat, it is characterised in that：The conductive core pole is in insulation core print seat, described insulation core print seat one end is wound with heating wire, the other end is cased with conductive link, the heating wire one is connected on conductive core pole, other end is connected on conductive link, the conductive link is arranged on insulation lever, the conductive link is electrically connected with conductive core pole by wire and temperature-control circuit, the electric soldering bit is connected with heat conducting sleeve, the heat conducting sleeve is placed on that one end of insulation core print seat where heating wire, and insulating thermal conductor is mutually separated between heating wire, insulating thermal conductor contacts with heating wire and heat conducting sleeve respectively, the electric soldering bit is close to that one end of insulation core print seat where heating wire.According to a kind of electric iron provided by the invention, have that heating is fast, little power consumption, temperature stabilization, the advantages that service life is long.

Description

A kind of electric iron

Technical field

The present invention relates to a kind of electric iron.

Background technology

It is known that electric iron is the indispensable instrument based on soldering.It is widely used in the industries such as electronic apparatus electrician.Pass The electric iron of system either internal heat type or external-heat, their operation principle are all by thermal conductivity ratio after being generated heat by electric heat generating core Preferable fine copper is led heat and realized on electric soldering bit to workpiece welding.In order to obtain larger heating power and relatively steady Fixed temperature, electric soldering bit and electric heat generating core are all long, and substantial amounts of electricity is caused in diabatic process and is wasted, is also therefore opened It is very long the time required to machine heating.The small power electric flatiron heat time typically at 5 minutes or so, it is powerful will 10 minutes with On, cause substantial amounts of waste of human resource.Other fine copper antioxidant anticorrosive abrasiveness is very poor, causes electric soldering bit consumption very big, One working day more persons must change 2-3.

With the industrial upgrading of electronics industry, also when the river rises the boat goes up for the requirement to electric iron, and speed is heated in the start of electric iron Degree, power consumption, temperature adjustment, temperature stability, service life etc. are proposed very high requirement.This this work of many producers at present It is many to improve upgrading but overall unsatisfactory.

The shortcomings that heating element heater of new-type constant temperature electric iron is installed respectively with temperature-measuring element at present, and they are common be It is complicated（Need 4 circuits）, poor reliability, maintenance and repair are very troublesome.Heater element has necessarily with temperature-measuring element Distance and cause temperature measurement accuracy not high, it is with high costs.

The content of the invention

In view of the shortcomings of the prior art, present invention innovation is supplied to a kind of heating soon, little power consumption, temperature stabilization, The electric iron of service life length.

The electric iron includes insulation lever, electric soldering bit, conductive core pole and insulation core print seat, it is characterised in that：It is described Conductive core pole is in insulation core print seat, and described insulation core print seat one end is wound with heating wire, and the other end is cased with conductive link, the electric heating Silk one is connected on conductive core pole, and other end is connected on conductive link, and the conductive link is arranged on insulation lever, institute State conductive link to electrically connect by wire and temperature-control circuit with conductive core pole, the electric soldering bit is connected with heat conducting sleeve, institute That one end of insulation core print seat that heat conducting sleeve is placed on where heating wire is stated, and insulating thermal conductor is mutually separated between heating wire, insulation is led Hot body contacts with heating wire and heat conducting sleeve respectively, and the electric soldering bit is close to that one end of insulation core print seat where heating wire.

The temperature-control circuit includes the electric wire circuit's module for being connected to heating wire both ends, Switching Power Supply, Wei Chu The amplified circuit of current signal is passed to microprocessor by reason device, display module and input module, electric wire circuit's module, Voltage signal is passed to microprocessor by electric wire circuit's module again, and microprocessor exports process signal to Switching Power Supply, The voltage of Switching Power Supply feedback control electric wire circuit's module, the microprocessor pass through display module displays temperature and power number According to the microprocessor is able to setup parameter by input module.

The material that the heating wire uses is nickel.

The material that the heat conducting sleeve uses is iron or aluminium alloy.

The material that the insulating thermal conductor uses is high-temperature plastic

According to a kind of electric iron provided by the invention, because electric soldering bit is very close to heating wire, electricity is greatly reduced The size of solder horn, heat is reduced to greatest extent and is distributed, has saved substantial amounts of electric power energy.Also save cost simultaneously. Therefore electric soldering bit quick heating, and it is more accurate in the thermometric to electric soldering bit, as long as the temperature at measurement heating wire, because It is the temperature of electric soldering bit for the temperature at heating wire, because the heating wire of use is with temperature-coefficient of electrical resistance and the linearity Nickel wire, while can be directly as sensor for measuring temperature, therefore also avoid the need for another external sensor（Additionally led by two Line connects）Onto electric soldering bit, in a sense, technique is simplified, reduce production cost, improve reliability；Separately Outside, the present invention realizes intelligent constant-temperature control to heating wire, prevents heating wire from producing in use also by temperature-control circuit Raw temperature fluctuations.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention；

Fig. 2 is the temperature-control circuit figure of the heating wire of the present invention.

Embodiment

As shown in figure 1, a kind of electric iron of the present invention, includes insulation lever（It is not drawn into）, electric soldering bit 5, conductive core Post 1 and insulation core print seat 6（It is made up of ceramics）, for wherein conductive core pole 1 in insulation core print seat 6, insulation core print seat 6 one end is wound with electricity Heated filament 4, insulation core print seat 6 for heating wire 4 with respect to carrier is played a part of, and the other end is cased with conductive link 2, the conductive link 2 On insulation lever, heating wire 4 one is connected on conductive core pole 1, and other end is connected on conductive link 2, the conduction Connecting rod 2 forms loop with conductive core pole 1 by wire and power supply, and electric soldering bit 5 is connected with heat conducting sleeve 3, and heat conducting sleeve 3 is placed on electricity That one end of insulation core print seat 6 where heated filament 4, and insulating thermal conductor 7 is mutually separated between heating wire 4, in addition, electric soldering bit 5 leans on That one end of insulation core print seat 6 where nearly heating wire 4.

From the above as can be seen that conductive core pole 1, heating wire 4 and conductive link 2 form loop with power supply, when logical When electric, heating wire 4 is rapidly heated heating, passes sequentially through insulating thermal conductor 7（Prevent heating wire 4 from short circuit occurs）, heat conducting sleeve 3 is by warm Amount passes to electric soldering bit 5, because the electric soldering bit 5 of this structure is very near from heating wire 4, is directly carried out by heat conducting sleeve 3 Heat is transmitted, therefore thermal loss is seldom（Power consumption is also accordingly greatly decreased）, electric soldering bit 5 heats up very rapid, Er Qiewen Spend easily controllable, the reason for being due to equally closer to the distance, the temperature of heating wire 4 close to electric soldering bit 5 temperature, therefore only The temperature of electric soldering bit 5 can be measured by measuring the temperature of heating wire 4, it is not necessary to, can only be temperature as prior art Sensor is arranged on the position of Electric soldering iron core, is equivalent to the temperature of electric soldering bit in the state of static state reluctantly, is actually existed Under dynamic behavior, there is very big difference in actual temperature and the temperature sensor measurement point temperature of electric soldering bit, cause temperature It is poor to spend precision.And the present invention does not need extra mounting temperature sensor, so as to simplify technique, reduce production cost, Improve functional reliability and temperature stability.

In addition it is noted that the material that uses of heating wire 4 of the present invention is nickel, nickel wire has higher electric conductivity, High temperature strength is good, more satisfactory temperature-coefficient of electrical resistance, and high-temperature capability is high, is very suitable for making heating wire 4.In addition, the present invention's leads Both the material that hot jacket 3 uses has stronger thermal conductivity, is not easy the oxide etch by air, therefore for iron or aluminium alloy It is more durable in use.

The present invention is by the use of pure nickel wire as electrical heating elements, while pure nickel wire has good temperature-coefficient of electrical resistance, can make For sensor for measuring temperature, because heating and measurement are identity elements, therefore temperature measurement accuracy is set to reach unprecedented height Degree, while also solve the problems, such as that complicated, cost is high, provide the user relatively reliable steady, the production of price material benefit Product.

As shown in Fig. 2 after Switching Power Supply is connected into electric-opening, power frequency supply is through Switching Power Supply isolated variable into low-voltage direct It is transported to after electricity on the heating wire 4 of electric iron, the both ends of heating wire 4 are connected with electric wire circuit's module, and electric wire circuit's module is same When take out and flow through the electric current of heating wire 4 and the voltage signal at the both ends of heating wire 4, voltage signal is believed with the electric current after amplified processing Number it is sent to microprocessor（Single-chip microcomputer）Enter trip temperature computing.

For example, heating wire（Nickel wire）Resistance at a temperature of 20 degree of environment is 1 Europe, and the temperature-coefficient of electrical resistance of nickel is 0.0069 Europe/degree Celsius, can be by every degree 0.0069 Europe/degree Celsius linear rise with the rise resistance of temperature.Pass through voltage divided by electric current Signal can calculate real-time heating wire by microprocessor（Nickel）Resistance change, so as to draw the change of temperature, then by micro- Manage device output control switch supply voltage feedback end and carry out voltage control, and then effectively control the stabilization of electric iron temperature, and it is warm The numerical value of degree shows that parameter is set by input module setting by display module.By said temperature control circuit, realize The intelligent constant-temperature of heating wire is controlled, makes that the heating of heating wire is more stable, and use is relatively reliable.

Claims

1. a kind of electric iron, include insulation lever, electric soldering bit（5）, conductive core pole（1）And insulation core print seat（6）, its feature It is：The conductive core pole（1）Located at insulation core print seat（6）It is interior, the insulation core print seat（6）One end is wound with heating wire（4）, the other end It is cased with conductive link（2）, the heating wire（4）One is connected to conductive core pole（1）On, other end is connected to conductive link（2） On, the conductive link（2）On insulation lever, the conductive link（2）With conductive core pole（1）Pass through wire and temperature Control circuit electrically connects, the electric soldering bit（5）With heat conducting sleeve（3）Connection, the heat conducting sleeve（3）It is placed on heating wire（4）Place Insulation core print seat（6）That one end, and and heating wire（4）Between be mutually separated with insulating thermal conductor（7）, insulating thermal conductor（7）Respectively with Heating wire（4）And heat conducting sleeve（3）Contact, the electric soldering bit（5）Close to heating wire（4）The insulation core print seat at place（6）That one end； The temperature-control circuit includes the electric wire circuit's module for being connected to heating wire both ends, Switching Power Supply, microprocessor, display The amplified circuit of current signal is passed to microprocessor, the electric heating by module and input module, electric wire circuit's module Voltage signal is passed to microprocessor by silk circuit module again, and microprocessor exports process signal to Switching Power Supply, Switching Power Supply The voltage of feedback control electric wire circuit's module, the microprocessor are described by display module displays temperature and power data Microprocessor is able to setup parameter by input module.

A kind of 2. electric iron according to claim 1, it is characterised in that：The heating wire（4）The material used is nickel.

A kind of 3. electric iron according to claim 1, it is characterised in that：The heat conducting sleeve（3）The material used for iron or Aluminium alloy.

A kind of 4. electric iron according to claim 1, it is characterised in that：The insulating thermal conductor（7）The material used for High-temperature plastic.