CN2464493Y

CN2464493Y - Eddy type electric soldering iron

Info

Publication number: CN2464493Y
Application number: CN 01211904
Authority: CN
Inventors: 于栋林; 于立君; 于立岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-27
Filing date: 2001-02-27
Publication date: 2001-12-12
Anticipated expiration: 2011-02-27

Abstract

The utility model relates to an eddy type electric soldering iron which belongs to the technical field of welding tools. The utility model comprises a soldering iron handle and a soldering iron head, wherein the connecting position of the soldering iron handle and a connecting cylinder is provided with a bracket in which a matching transformer with high frequency is arranged, the primary stage of the matching transformer with high frequency is leaded out by a single-core high-frequency cable wire which is provided with a high-frequency plug and is connected with a high-frequency power source and a control circuit which are arranged in a casing of the bracket of the soldering iron, and the secondary stage of the matching transformer with high frequency is connected with an induction coil which is sheathed on an iron sleeve pipe; the soldering iron head and the iron sleeve pipe are tightly matched with each other to form an inductor. The utility model has the advantages of high thermal efficiency, quick rise in temperature, long service life of a heating element and energy saving. The utility model is thoroughly isolated from the 220 V alternating current, so users can be isolated from welded elements without damage.

Description

The eddy current type electric iron

The utility model belongs to the soldering appliance technical field, in particular a kind of eddy current type electric iron.

At present, the common electric iron great majority of people all are that resistance wire is wound on the solder horn as heating element heater, and the resistance wire life-span of this electric iron is short, fragile and can't repair.In addition, the thermal efficiency is low, and it is slow to heat up.Slow owing to heat up, the fast power conversion that is not easy to do, when intermittently welding, it is long slightly to stop the weldering time, and solder horn will " be burnt " to death (oxidation).Therefore, the solder horn heat erosion is serious, needs often to repair the service life of having reduced solder horn.Owing to directly with 220 volts of Alternating Current Power Supplies, easily leak electricity during insulation ag(e)ing, bring danger to the user.

The purpose of this utility model provides a kind of thermal efficiency height, quick heating, the life-span is long and eddy current type electric iron safe in utilization, to overcome the defective that prior art exists.

The technical solution of the utility model is achieved in that it comprises flatiron handle and solder horn, flatiron is the connecting cylinder of connecting band louvre, it is characterized in that: the flatiron handle is provided with carriage with the junction of connecting cylinder, be provided with the high frequency matching transformer in the carriage, the elementary usefulness of high frequency matching transformer has single core high-frequency electrical cable of High-frequency plug and draws high frequency electric source and the control circuit that connects in the Iron Stand housing, secondary be enclosed within ferule on induction coil be connected, solder horn and ferule tight fit constitute inductor, and power line connects 220 volts of alternating currents.

High frequency electric source is 220 volts of idle frequency power transformers, standard semibridge system self-excited oscillator, and its circuit is made of VT6, VT7, VD6, VD7, electric capacity and resistance etc.Control circuit is made of inductive receiving circuit, logic circuit and controllable silicon zero voltage switching circuit.

Good effect of the present utility model is as follows:

1. thermal efficiency height, quick heating.

2. the heating element heater life-span is long.

3. solder horn long service life.

4. the saving electric energy owing to quick heating, is finished the effect that high power is rapidly heated, middle power welds, the saving electric energy was played in insulation when low-power was welded intermittently under the support of control circuit, and solder horn can " not burnt to death ", increases the service life.

5. without earth connection, thoroughly isolate with 220 volts of alternating currents, harmless to user and soldered element.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a structure cutaway view of the present utility model;

Fig. 2 is the structural representation of Iron Stand housing;

Fig. 3 is the vertical view of Fig. 2;

Fig. 4 is high frequency electric source and the control circuit schematic diagram in the utility model Iron Stand housing.

With reference to Fig. 1, the 1st, the flatiron handle, the 2nd, the connecting cylinder of band louvre, flatiron 1 and the junction of connecting cylinder 2 carriage 3 is set, be provided with high frequency matching transformer 5 in the carriage 3, its elementary usefulness has single core high-frequency electrical cable 7 of High-frequency plug and draws the high frequency electric source that connects in the Iron Stand housing 8, secondary be enclosed within ferule 9 on thick copper lines induction coil 6 be connected, ferule 9 is fixing with connecting cylinder 2 usefulness screws 4, solder horn 10 and ferule 9 tight fits formation inductor, the 11st, power line, the 12nd, Iron Stand.

With reference to Fig. 2, the 12nd, Iron Stand, the 13rd, the locating slot of carriage is set, the 14th, connect the jack of the High-frequency plug of high-frequency electrical cable, the 15th, the setting button is rapidly heated.

With reference to Fig. 3, the 8th, Iron Stand housing, the 11st, the power line of 220 volts of alternating currents of connection, the 12nd, Iron Stand, the 13rd, locating slot.

With reference to Fig. 4, inductive receiving circuit is made of coil L1, diode VD1, VD2, capacitor C 1, C2, triode VT1 and resistance R 1, R2, R3, R4.The electric iron location is placed on the Iron Stand, induction coil on the solder horn is very near apart from the receiving coil in the Iron Stand housing inner control circuit, during energising, the sensed generation high frequency electric of receiving coil, high frequency electric change DC current into through VD1, VD2, C1 ends VT1.As electric iron is picked up, it is far away that two coil distances become, and do not have high frequency electric to produce in the receiving coil, and VT1 enters saturation state.Electric iron in use takes up and puts down, and puts down and takes up, and constantly repeats, and triode VT1 also follows by saturated, saturatedly ends again.

Triode VT1 colelctor electrode control is by the logic circuit that D1, D2, VT2, IC1 etc. form, makes it IC1 " 0 " and holds waveform to follow the electric iron variation of rising and falling.When electric iron put down, the synchronous cycle time of output and 50Hz alternating current was high level, and three cycle times are low level waveform.Be high level when electric iron takes up in 5 seconds, output later in 5 seconds is high level with the cycle time of 50Hz AC synchronous, and a cycle time is low level.

The controllable silicon zero voltage switching circuit that the control of IC1 " 0 " end is made up of VT3, VT4, D3, D4, VT5 is realized total power 100% cycle conducting, half-power 50% cycle conducting, small-power 25% cycle conducting.

High frequency electric source is 220 volts of idle frequency power transformers, standard semibridge system self-excited oscillator, and its circuit is made of VT6, VT7, VD6, VD7, electric capacity and resistance etc.

Before using the utility model, set Type of Welding (continuous welding or interruption welding) earlier, do not need by the setting button that is rapidly heated as continuous welding, need press the setting button that is rapidly heated as being interrupted welding.Setting finishes, and plugs 220 volts of AC powers, and when electric iron induction coil 6 had electric current, inductor was heated by induction generation eddy current self.When electric iron is picked up from Iron Stand, 5 second total power be rapidly heated, change half-power then over to, as long as electric iron do not put back on the Iron Stand, remain the half-power heating, half-power is a bonding power.When electric iron was put back to Iron Stand, heating power transferred 1/4 power again to, and 1/4 power is that electric iron is in intermittently keeping warm mode.As long as electric iron does not take up, just remain the heating of 1/4 power, so not only played the effect of saving electric energy but also solder horn " is burnt to death ", increase the service life.And so forth, realize that power changes.

Claims

1, a kind of eddy current type electric iron, its bag flatiron is (1) and solder horn (10), flatiron is the connecting cylinder (2) of (1) connecting band louvre, it is characterized in that: flatiron is provided with carriage (3) to the junction of (1) and connecting cylinder (2), be provided with high frequency matching transformer (5) in the carriage (3), the elementary usefulness of high frequency matching transformer (5) has single core high-frequency electrical cable (7) of High-frequency plug and draws interior high frequency electric source and the control circuit of housing (8) that connects Iron Stand (12), secondary be enclosed within ferule (9) on induction coil (6) be connected, solder horn (10) constitutes inductor with ferule (9) tight fit, and power line (11) connects 220 volts of alternating currents.

2, eddy current type electric iron according to claim 1 is characterized in that: high frequency electric source is 220 volts of idle frequency power transformers, standard semibridge system self-excited oscillator, and its circuit is made of VT6, VT7, VD6, VD7, electric capacity and resistance etc.

3, eddy current type electric iron according to claim 1 is characterized in that: control circuit is made of inductive receiving circuit, logic circuit and controllable silicon zero voltage switching circuit.