CN203181262U - High frequency electric welding bench electromagnetic induction heating system - Google Patents
High frequency electric welding bench electromagnetic induction heating system Download PDFInfo
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- CN203181262U CN203181262U CN 201320035119 CN201320035119U CN203181262U CN 203181262 U CN203181262 U CN 203181262U CN 201320035119 CN201320035119 CN 201320035119 CN 201320035119 U CN201320035119 U CN 201320035119U CN 203181262 U CN203181262 U CN 203181262U
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- heating system
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Abstract
The utility model discloses a high frequency electric welding bench electromagnetic induction heating system, which comprises an AC-DC converting circuit, an inversion circuit, an on-off control circuit and an induction heating load circuit, wherein the AC-DC converting circuit, the inversion circuit, the on-off control circuit and the induction heating load circuit are electrically connected, the inversion circuit comprises a magnet ring inductance L1, a high frequency bypass capacitor C1 and an inversion capacitor C2, the on-off control circuit comprises a switch tube and a pulse switch signal source electrically connected to the switch tube, and the induction heating load circuit comprises a resonant capacitor C3 and an induction coil cooperated to a solder horn. The AC-DC converting circuit does not contain a large capacity energy storage filter capacitor, the power supply harmonic wave is small, the input power factor is increased, and electrical network environment can be effectively improved; in addition, when the induction coil generates open circuit damage or short circuit, the switch tube realizes automatic protection. The high frequency electric welding bench electromagnetic induction heating system has the advantages of simple structure, good stability and low cost.
Description
Technical field
The utility model relates to electric welding platform technical field, relates in particular to a kind of high-frequency electrical welding stage electromagnetic induction heating system.
Background technology
Prior art is generally come electronic devices and components are carried out the tin soldering by electric iron or electric welding platform, the heating principle of above-mentioned electric iron and electric welding platform generally is divided into two classes, be specially: a class is that the heat that is sent during by resistance with electric current comes heating object, common electric iron is exactly to pass to electric current by the electric resistance alloy silk that is wrapped on the solder horn, thereby the heat that the alloy silk is sent out is passed to solder horn fusing scolding tin, the used current source of this class can be direct current, also can be alternating current; Another kind of is that high-frequency current makes magnetic metal produce the induced current heating by electromagnetic induction coil, the high-frequency electrical flatiron is exactly to pass to high-frequency current by the electromagnetic induction coil on the solder horn that is wrapped in the ferrimag layer, thereby make the ferrimag layer produce the eddy current Joule heat and make solder horn intensification fusing scolding tin, the high programming rate of the heat efficiency is fast.
Fig. 1 is existing high-frequency electrical welding stage electromagnetic induction heating system, this high-frequency electrical welding stage electromagnetic induction heating system includes AC-DC change-over circuit 100, resonance inversion circuit 101 and induction heating load circuit 102, resonance inversion circuit 101 includes magnet ring inductance L 1, inversion capacitor C 3, switching tube 103, pulse switch signal source 104, high frequency bypass condenser C2, capacitance C4 and the magnet ring inductance L 2 that plays choking effect, wherein, magnet ring inductance L 1, inversion capacitor C 3, resonance inversion structure, high frequency bypass condenser C2 are formed in switching tube 103 and pulse switch signal source 104, capacitance C4 and magnet ring inductance L 2 provide hf channel for induction heating load circuit 102.Induction heating load circuit 102 includes induction coil 105 and resonance capacitor C 5.
In the above-mentioned high-frequency electrical welding stage electromagnetic induction heating system course of work, pulse switch signal source 104 makes periodically turn-on and turn-off of switching tube 103, magnet ring inductance L 1 forms high-frequency resonant with inversion capacitor C 3 and induction heating load circuit 102, make the voltage cycle ground of switching tube 103 drain electrode end 103a return zero formation inversion, the output of high frequency power also is provided for induction heating load circuit 102 simultaneously.Because the AC-DC change-over circuit 100 of above-mentioned high-frequency electrical welding stage electromagnetic induction heating system is the jumbo energy storage filter capacitor C1 that directly is coupled behind the bridge full-wave rectifier, though exchanging the voltage e of side input is sinusoidal waveform, have the dead band and be the wavy interrupted current in pinnacle but the current i of input is one, suck the big and alternating current of the pulsating current of electrical network when heating at full capacity and comprised a large amount of harmonic waves, also reduced the power factor (PF) of whole system simultaneously; In addition; resonance inversion circuit 101 belongs to series resonance output; when in a single day the induction coil 105 of induction heating load circuit 102 opens a way; the voltage that switching tube 103 bears is high and breakdown easily; so; existing high-frequency electrical welding stage electromagnetic induction heating system also must configuration current monitoring and protective circuit, and the more complicated and cost of whole system circuit structure is increased the weight of.
The utility model content
The purpose of this utility model is to provide a kind of high-frequency electrical welding stage electromagnetic induction heating system at the deficiencies in the prior art, and this high-frequency electrical welding stage electromagnetic induction heating system is simple in structure, and stability is strong and cost is low.
For achieving the above object, the utility model is achieved through the following technical solutions.
A kind of high-frequency electrical welding stage electromagnetic induction heating system, include the AC-DC change-over circuit that is electrically connected successively, inverter circuit, ON-OFF control circuit and induction heating load circuit, the output of AC-DC change-over circuit is provided with first output electrode and second output electrode, inverter circuit includes magnet ring inductance L 1, high frequency bypass condenser C1 and inversion capacitor C 2, magnet ring inductance L 1 is provided with first terminals and second terminals, the pulse switch signal source that ON-OFF control circuit includes switching tube and is electrically connected with switching tube, the induction coil that the induction heating load circuit includes resonant capacitance C3 and cooperates with solder horn, the input of induction heating load circuit is provided with first load node and second load node, first output electrode of AC-DC change-over circuit is connected with first terminals of magnet ring inductance L 1, second terminals of magnet ring inductance L 1 are connected with first load node of induction heating load circuit, switching tube is connected between second load node of second output electrode of AC-CD change-over circuit and induction heating load circuit, the two ends of high frequency bypass condenser C1 are connected with second output electrode of the AC-DC change-over circuit of respective side and first terminals of magnet ring inductance L 1 respectively, and the two ends of inversion capacitor C 2 are connected with second output electrode of the AC-DC change-over circuit of respective side and second terminals of magnet ring inductance L 1 respectively.
Wherein, the magnetic permeability of described magnet ring inductance L 1 is 10-35 μ 0.
Wherein, described magnet ring inductance L 1 is ferrocart core magnet ring inductance.
Wherein, described magnet ring inductance L 1 is the Sendust Cores inductance.
Wherein, the switching signal output frequency in described pulse switch signal source is 200-800KHZ.
Wherein, described switching tube is insulated gate bipolar transistor.
Wherein, described switching tube is the metal oxide layer semiconductor field-effect transistor.
The beneficial effects of the utility model are: a kind of high-frequency electrical welding stage electromagnetic induction heating system described in the utility model, include the AC-DC change-over circuit, inverter circuit, ON-OFF control circuit and the induction heating load circuit that are electrically connected successively, inverter circuit includes magnet ring inductance L 1, high frequency bypass condenser C1 and inversion capacitor C 2, the pulse switch signal source that ON-OFF control circuit includes switching tube and is electrically connected with switching tube, the induction coil that the induction heating load circuit includes resonant capacitance C3 and cooperates with solder horn.The AC-DC change-over circuit is not owing to contain jumbo energy storage filter capacitor, it exchanges the very little and current i of the phase difference of the phase place of voltage of side input voltage e and current i near sinusoidal waveform, the current waveform distortion is little, and then makes that supply harmonic is little, input power factor improves and improve effectively power grid environment; When induction coil occurred damaging open circuit, switching tube quit work owing to losing supply voltage, thus the Automatic Protection Switching pipe; When induction coil occur to damage short circuit, inverter circuit make switching tube under no-voltage, open with no-voltage under turn-off, power consumption is extremely low, switching tube is still protected.Comprehensive above-mentioned situation the utlity model has simple in structure, good stability and the low advantage of cost as can be known.
Description of drawings
Utilize accompanying drawing to come the utility model is further detailed below, but the embodiment in the accompanying drawing does not constitute any restriction of the present utility model.
Fig. 1 is the structural representation of high-frequency electrical welding stage electromagnetic induction heating system of the prior art.
Fig. 2 is structural representation of the present utility model.
Embodiment
Come the utility model is described below in conjunction with concrete execution mode.
As shown in Figure 2, a kind of high-frequency electrical welding stage electromagnetic induction heating system, include the AC-DC change-over circuit 1 that is electrically connected successively, inverter circuit 2, ON-OFF control circuit 3 and induction heating load circuit 4, the output of AC-DC change-over circuit 1 is provided with first output electrode 11 and second output electrode 12, inverter circuit 2 includes magnet ring inductance L 1, high frequency bypass condenser C1 and inversion capacitor C 2, magnet ring inductance L 1 is provided with first terminals 21 and second terminals 22, the pulse switch signal source 32 that ON-OFF control circuit 3 includes switching tube 31 and is electrically connected with switching tube 31, the induction coil 41 that induction heating load circuit 4 includes resonant capacitance C3 and cooperates with solder horn 5, the input of induction heating load circuit 4 is provided with first load node 42 and second load node 43, first output electrode 11 of AC-DC change-over circuit 1 is connected with first terminals 21 of magnet ring inductance L 1, second terminals 22 of magnet ring inductance L 1 are connected with first load node 42 of induction heating load circuit 4, switching tube 31 is connected between second load node 43 of second output electrode 12 of AC-CD change-over circuit and induction heating load circuit 4, the two ends of high frequency bypass condenser C1 are connected with second output electrode 12 of the AC-DC change-over circuit 1 of respective side and first terminals 21 of magnet ring inductance L 1 respectively, and the two ends of inversion capacitor C 2 are connected with second output electrode 12 of the AC-DC change-over circuit 1 of respective side and second terminals 22 of magnet ring inductance L 1 respectively.
Wherein, the magnetic permeability of magnet ring inductance L 1 is 10-35 μ 0, and magnet ring inductance L 1 is ferrocart core magnet ring inductance or Sendust Cores inductance; The switching signal output frequency in pulse switch signal source 32 is 200-800KHZ; Switching tube 31 is insulated gate bipolar transistor or metal oxide layer semiconductor field-effect transistor.
Need further to explain, AC-DC change-over circuit 1 converts alternating current direct current to and provides electric power by first output electrode 11 and second output electrode 12 for inverter circuit 2, wherein, the AC power that AC-DC change-over circuit 1 connects can be power frequency AC, also can be the Industrial Frequency Transformer secondary power.Inverter circuit 2 is mainly used in converting the direct current that AC-DC change-over circuit 1 is exported to high-frequency current.The resonant capacitance C3 of induction heating load circuit 4 cooperates with induction coil 41, and under the high-frequency current effect that inverter circuit 2 is exported, the magnetic field that induction coil 41 produces makes the ferrimag layer of solder horn 5 form eddy current and heating.
Come the utility model is described in detail below in conjunction with concrete process, be specially: the direct current of the unidirectional pulsation of AC-DC change-over circuit 1 output is given inverter circuit 2, the direct voltage of unidirectional pulsation is connected in the drain electrode of switching tube 31 successively by magnet ring inductance, induction coil 41, when pulse switch signal source 32 output had the oscillator signal of certain pulsewidth, switching tube 31 was along with the alternately conducting and ending of the height of the pulse switch signal voltage of control input end; When switching tube 31 conductings, the resonant capacitance charging; When switching tube 31 ended, resonant capacitance was to induction coil 41 discharges and form the high-frequency resonant electric current, forms high frequency magnetic field when induction coil 41 flows through high-frequency current, and this high frequency magnetic field makes the ferrimag layer of solder horn 5 form also heating of eddy current.
During work, the resonance of induction heating load circuit 4 is close to the switching signal output frequency in pulse switch signal source 32; Under resonance condition, the electric current of induction coil 41 and voltage phase difference are zero, and solder horn 5 can obtain maximum high-frequency induction eddy current power, thereby improve the efficiency of heating surface.
The cycle of oscillation that the harmonic period of inverter circuit 2 is exported less than pulse switch signal source 32, and then make switching tube 31 realize that no-voltages are opened and no-voltage is turn-offed, greatly reduce the loss of switch element.
In heating process, when induction coil 41 occurred damaging open circuit, switching tube 31 quit work owing to losing supply voltage, thus Automatic Protection Switching pipe 31; When induction coil 41 occurs damaging short circuits, inverter circuit 2 make switching tube 31 under no-voltage, open with no-voltage under turn-off, power consumption is extremely low, switching tube 31 is still protected.
AC-DC change-over circuit 1 is not owing to contain jumbo energy storage filter capacitor, it exchanges the very little and current i of the phase difference of the phase place of voltage of side input voltage e and current i near sinusoidal waveform, the current waveform distortion is little, and then makes that supply harmonic is little, input power factor improves and improve effectively power grid environment.
Above content only is preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (7)
1. high-frequency electrical welding stage electromagnetic induction heating system, it is characterized in that: include the AC-DC change-over circuit (1) that is electrically connected successively, inverter circuit (2), ON-OFF control circuit (3) and induction heating load circuit (4), the output of AC-DC change-over circuit (1) is provided with first output electrode (11) and second output electrode (12), inverter circuit (2) includes magnet ring inductance L 1, high frequency bypass condenser C1 and inversion capacitor C 2, magnet ring inductance L 1 is provided with first terminals (21) and second terminals (22), the pulse switch signal source (32) that ON-OFF control circuit (3) includes switching tube (31) and is electrically connected with switching tube (31), the induction coil (41) that induction heating load circuit (4) includes resonant capacitance C3 and cooperates with solder horn (5), the input of induction heating load circuit (4) is provided with first load node (42) and second load node (43), first output electrode (11) of AC-DC change-over circuit (1) is connected with first terminals (21) of magnet ring inductance L 1, second terminals (22) of magnet ring inductance L 1 are connected with first load node (42) of induction heating load circuit (4), switching tube (31) is connected between second load node (43) of second output electrode (12) of AC-CD change-over circuit and induction heating load circuit (4), the two ends of high frequency bypass condenser C1 are connected with second output electrode (12) of the AC-DC change-over circuit (1) of respective side and first terminals (21) of magnet ring inductance L 1 respectively, and the two ends of inversion capacitor C 2 are connected with second output electrode (12) of the AC-DC change-over circuit (1) of respective side and second terminals (22) of magnet ring inductance L 1 respectively.
2. a kind of high-frequency electrical welding stage electromagnetic induction heating system according to claim 1, it is characterized in that: the magnetic permeability of described magnet ring inductance L 1 is 10-35 μ 0.
3. a kind of high-frequency electrical welding stage electromagnetic induction heating system according to claim 2 is characterized in that: described magnet ring inductance L 1 is ferrocart core magnet ring inductance.
4. a kind of high-frequency electrical welding stage electromagnetic induction heating system according to claim 2 is characterized in that: described magnet ring inductance L 1 is the Sendust Cores inductance.
5. a kind of high-frequency electrical welding stage electromagnetic induction heating system according to claim 1, it is characterized in that: the switching signal output frequency in described pulse switch signal source (32) is 200-800KHZ.
6. a kind of high-frequency electrical welding stage electromagnetic induction heating system according to claim 1, it is characterized in that: described switching tube (31) is insulated gate bipolar transistor.
7. a kind of high-frequency electrical welding stage electromagnetic induction heating system according to claim 1, it is characterized in that: described switching tube (31) is the metal oxide layer semiconductor field-effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320035119 CN203181262U (en) | 2013-01-23 | 2013-01-23 | High frequency electric welding bench electromagnetic induction heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320035119 CN203181262U (en) | 2013-01-23 | 2013-01-23 | High frequency electric welding bench electromagnetic induction heating system |
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| Publication Number | Publication Date |
|---|---|
| CN203181262U true CN203181262U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320035119 Expired - Fee Related CN203181262U (en) | 2013-01-23 | 2013-01-23 | High frequency electric welding bench electromagnetic induction heating system |
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| CN (1) | CN203181262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106028490A (en) * | 2016-06-24 | 2016-10-12 | 深圳市晶金电子有限公司 | Electromagnetic hot melting apparatus and method for flexible/rigid multilayered printed circuit board |
| CN110169596A (en) * | 2019-04-26 | 2019-08-27 | 惠州市沛格斯科技有限公司 | Vortex induction heater circuit and electronic smoking set |
-
2013
- 2013-01-23 CN CN 201320035119 patent/CN203181262U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106028490A (en) * | 2016-06-24 | 2016-10-12 | 深圳市晶金电子有限公司 | Electromagnetic hot melting apparatus and method for flexible/rigid multilayered printed circuit board |
| CN110169596A (en) * | 2019-04-26 | 2019-08-27 | 惠州市沛格斯科技有限公司 | Vortex induction heater circuit and electronic smoking set |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20160123 |
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| EXPY | Termination of patent right or utility model |