CN103624364A - High-duty inverter type direct current arc welding machine - Google Patents
High-duty inverter type direct current arc welding machine Download PDFInfo
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- CN103624364A CN103624364A CN201310655790.2A CN201310655790A CN103624364A CN 103624364 A CN103624364 A CN 103624364A CN 201310655790 A CN201310655790 A CN 201310655790A CN 103624364 A CN103624364 A CN 103624364A
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- circuit
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- contravariant
- time factor
- arc welder
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
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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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The invention provides a high-duty inverter type direct current arc welding machine, which comprises a casing, a circuit board and an electric appliance element, wherein the circuit board and the electric appliance element are arranged in the casing, an air inlet and an air outlet are respectively formed in front and back plates of the casing, the air inlet part positioned on the back plate is provided with a fan, an insulation separation plate in parallel arrangement to the circuit board is also arranged in the casing, two power heat radiators and output rectification heat radiators are respectively arranged between the insulation separation plate and the circuit board, the two ends of the two power heat radiators and the two output rectification heat radiators are respectively arranged at the upper ends and the lower ends of the insulation separation plate and the circuit board, and the two power heat radiators, the two output rectification heat radiators and the insulation separation plate are surrounded for forming a heat radiation passage used for the heat radiation of the electric appliance element. The high-duty inverter type direct current arc welding machine provided by the invention has the beneficial effects that the work time of the welding machine is prolonged, and the area of the heat radiator is effectively reduced, so the machine structure is more reasonable, the cost is lower, and the quality is more stable.
Description
Technical field
The present invention relates to a kind of contravariant DC arc welder of high arcing time factor.
Background technology
China Patent No. is 201220612125.6 utility model patent, open day is on 04 24th, 2013, disclose a kind of board structure of circuit of microminiature high capacity water holdup inverter type welder, comprised drive circuit, pwm pulse width modulation circuit, welding machine output characteristics control circuit and the power circuit of inverter main circuit, IGBT; Inverter main circuit is comprised of input filter circuit, power on buffer circuit and single tube IGBT; It is characterized in that: these all circuit parts and components and parts are arranged on three-circuit plate; Between three circuit boards, the row's of employing formula contact pin/socket carries out the connection of electric equipment compartment; Among three circuit boards, two large circuit board sizes are the same, parallel longitudinal layout, and other one is little circuit board, little circuit board is connected on an above-mentioned wherein large circuit board.Shortcoming be internal structure complicated, ventilate unreasonablely, volume is large, control circuit is complicated, components and parts used are many, poor reliability, testing complex, is unfavorable for maintenance, production efficiency is low, cost is high.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiency of above-mentioned prior art, provide a kind of installation power radiator of two ends up and down by the wiring board that is parallel to each other in welding machine inside and insulation board and output rectification radiator to form sealed heat-dissipating passage, improved the contravariant DC arc welder of high arcing time factor of the ventilation effect of complete machine.
The main technical schemes adopting according to the contravariant DC arc welder of a kind of high arcing time factor provided by the invention is: comprise housing and wiring board and the electric elements in described housing are set, on the front and rear panel of described housing, there is respectively air inlet and air outlet, the described air inlet place being positioned on described rear plate is provided with blower fan, in described housing, be also provided with an insulating barrier be arrangeding in parallel with described wiring board, between described insulating barrier and described wiring board, be respectively arranged with two power radiators and output rectification radiator, the two ends of two described power radiators and two described output rectification radiators are arranged on respectively the two ends up and down of described insulating barrier and described wiring board, two described power radiators, two described output rectification radiators and described insulating barrier surround the heat dissipation channel for electric elements heat radiation.
The contravariant DC arc welder of high arcing time factor provided by the invention also can have following attached technical characterictic:
Described electric elements comprise main transformer and electrochemical capacitor, and described main transformer is arranged between two described output rectification radiators, and described electrochemical capacitor is arranged between two described power radiators.
Described electric elements also comprise a plurality of IGBT and fast recovery diode, and described IGBT is arranged on respectively two described power radiator outsides, and described fast recovery diode is arranged on respectively the outside of two described output rectification radiators.
Described electric elements also comprise the rectifier bridge on the described power radiator that is arranged on described wiring board upper end, on described rectifier bridge right side, be provided with auxiliary electrical source plate, the two ends of described auxiliary electrical source plate are arranged on respectively on the described power radiator and described output rectification radiator of upper end.
On rear plate in described housing, be positioned at described air inlet top and be provided with power switch and inlet wire port.
Two described output rectification radiators are connected by output aluminium row, be positioned at described air outlet below and be provided with quick socket on the header board in described housing, and described output aluminium row is connected on described quick socket.
The top of the header board in described housing is provided with electric current potentiometer and indicator lamp.
Blower fan guard is installed on described air inlet.
On described wiring board, there is the control circuit, input rectification circuit, filter circuit, full bridge inversion circuit, intermediate frequency transforming circuit and the output rectification circuit that are connected, after described input rectification circuit carries out rectification to industrial-frequency alternating current, input filter circuit is filtered into direct current, via full bridge inversion circuit inversion, be high-frequency alternating current, then export after described intermediate frequency transforming circuit transformation is by output rectification circuit rectification.
The described rectifier bridge D11, the D15 that are connected form described input rectification circuit, the described electrochemical capacitor C27-C28 being connected forms described filter circuit, the IGBT1-IGBT4 being connected forms described full bridge inversion circuit, fast recovery diode D10, the D12, D13, the D14 that are connected form described output rectification circuit, and described intermediate frequency transforming circuit is main transformer T1.
Adopt the beneficial effect that the contravariant DC arc welder of high arcing time factor provided by the invention brings to be: by the wiring board that is parallel to each other in welding machine inside and the installation power radiator of two ends up and down and the output rectification radiator of insulation board, to form sealed heat-dissipating passage, improved the ventilation effect of complete machine, make the cyclic duration factor of welding machine up to 60%, effectively guaranteed that user improves productivity effect, reduced artificial loss; By adopting unique device distributed architecture, the ventilation effect of complete machine is obviously improved, heater members is arranged on air channel, not only can well dispel the heat but also can reduce the area of radiator, reduce greatly machine cost, main is that the volume and weight of whole inversion welding machine reduces greatly, and overall construction design is exquisite simultaneously, there is stereovision, improved the attractive in appearance of welding machine integral body.
Accompanying drawing explanation
Fig. 1 is the structure chart of the contravariant DC arc welder of high arcing time factor of the present invention.
Fig. 2 is the cut-away view of the contravariant DC arc welder of high arcing time factor of the present invention.
Fig. 3 is the decomposition chart of the contravariant DC arc welder of high arcing time factor of the present invention.
Fig. 4 is the circuit diagram of the contravariant DC arc welder of high arcing time factor of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
As shown in Figures 1 to 4, according to the embodiment of the contravariant DC arc welder of a kind of high arcing time factor provided by the invention, comprise housing 1 and wiring board 2 and the electric elements 3 in described housing 1 are set, on the rear plate 11 of described housing 1 and header board 14, there is respectively air inlet 12 and air outlet 13, be positioned at described air inlet 12 places blower fan 4 is installed, in described housing 1, be also provided with an insulating barrier 5 be arrangeding in parallel with described wiring board 2, between described insulating barrier 5 and described wiring board 2, be respectively arranged with two power radiators 6 and output rectification radiator 7, the two ends of two described power radiators 6 and two described output rectification radiators 7 are arranged on respectively the two ends up and down of described insulating barrier 5 and described wiring board 2, two described power radiators 6, two described output rectification radiators 7 and described insulating barrier 5 surround the heat dissipation channel 8 for electric elements 3 heat radiations, the installation power radiator of two ends up and down 6 and output rectification radiator 7 by the wiring board 2 that is parallel to each other in welding machine inside and insulating barrier 5 form sealed heat-dissipating passages 8, and be also provided with ventilating opening on the front side board of housing and back side panel, improved the ventilation effect of complete machine, welding machine is in working long hours, the electric elements heating of enclosure interior, when internal temperature acquires a certain degree, the blower fan 4 that is positioned at the enterprising air port 12 of the rear plate 11 of housing 1 is blown into heat dissipation channel 8 by air, electric elements 3 can be according to the different heat radiation requirement of itself, be successively set on from high to low near air inlet 12 positions, by above-mentioned setting, make the cyclic duration factor of welding machine up to 60%, effectively guaranteed that user improves productivity effect, reduce artificial loss.
Referring to Fig. 1 to Fig. 4, according to the contravariant DC arc welder of high arcing time factor provided by the invention, described electric elements 3 comprise main transformer 31 and electrochemical capacitor 32, described main transformer 31 is arranged between two described output rectification radiators 7, described electrochemical capacitor 32 is arranged between two described power radiators 6, also comprise a plurality of IGBT33 and fast recovery diode 34, described IGBT33 is arranged on respectively two described power radiator 6 outsides, described fast recovery diode 34 is arranged on respectively the outside of two described output rectification radiators 7, also comprise the rectifier bridge 35 on the described power radiator 6 that is arranged on described wiring board 2 upper ends, on described rectifier bridge 35 right sides, be provided with auxiliary electrical source plate 36, described auxiliary electrical source plate 36 is connected with described output rectification radiator 7, the setting of electric elements 3 of the present invention is not limited to above-mentioned distribution, electric elements 3 not only can be arranged on the main radiator 6 in upper end and additional cooler 7, also can be arranged on the main radiator 6 and additional cooler 7 of lower end, the present invention is only described in detail a kind of structure wherein, other distributed architectures just carry out simple substitute on this basis, therefore also in protection scope of the present invention, by adopting unique device distributed architecture, the ventilation effect of complete machine is obviously improved, heater members is arranged on heat dissipation channel 8, not only can well dispel the heat but also can reduce the area of radiator, reduce greatly machine cost, main is that the volume and weight of whole inversion welding machine reduces greatly.
Referring to Fig. 1 to Fig. 4, according to the contravariant DC arc welder of high arcing time factor provided by the invention, on rear plate 11 in described housing 1, be positioned at described air inlet 12 tops and be provided with power switch 37 and inlet wire port 38, two described output rectification radiators 7 are connected by output aluminium row 39, on header board 14 in described housing 1, be positioned at described air outlet 13 belows and be provided with quick socket 310, described output aluminium row 39 is connected on described quick socket 310, quick socket 310 adopts hand assembled mode, other a large amount of electronic devices and components all adopt SMT paster material carry out Auto-mounting and be welded on above the opposite side of circuit board, by above-mentioned design, make welding machine overall construction design exquisite, there is stereovision, improved the attractive in appearance of welding machine integral body.
Referring to Fig. 1 to Fig. 4, according to the contravariant DC arc welder of high arcing time factor provided by the invention, on header board 14 in described housing 1, there is a flange 15 that outwards turnover forms, on described fixed head 16, be provided with potentiometer knob 311 and indicator lamp 312, blower fan guard or air vent 17 be installed on described air inlet 12 and prevent that dust from entering in welding machine housing.
Referring to Fig. 1 to Fig. 4, according to the contravariant DC arc welder of high arcing time factor provided by the invention, on described wiring board 2, there is control circuit 21, input rectification circuit 22, filter circuit 23, full bridge inversion circuit 24, intermediate frequency transforming circuit 25 and output rectification circuit 26, after 22 pairs of industrial-frequency alternating currents of described input rectification circuit carry out rectification, input filter circuit 23 is filtered into direct current, via full bridge inversion circuit 24 inversions, it is alternating current, after described intermediate frequency transforming circuit 25 transformations are by output rectification circuit 26 rectifications, export again, on other a large amount of electronic devices and components all adopt SMT paster material to carry out Auto-mounting and are welded on above the opposite side of circuit board.
Referring to Fig. 1 to Fig. 4, according to the contravariant DC arc welder of high arcing time factor provided by the invention, the described rectifier bridge D11, the D15 that are connected form described input rectification circuit 22, the described electrochemical capacitor C27-C38 being connected forms described filter circuit 23, the IGBT1-IGBT4 being connected forms described full bridge inversion circuit 24, fast recovery diode D10, D12, D13, the D14 being connected forms described output rectification circuit 26, and described intermediate frequency transforming circuit 25 is main transformer T1.
Welding machine cardinal principle: welding machine is obtained industrial-frequency alternating current by power switch 37 (S1), through soft start resistance R 31, supply with auxiliary power circuit plate 36, make that normal operation is respectively drive circuit, control system, blower fan 4, the relay that is arranged on wiring board 2 provides stabilized power source, then through rectifier bridge 35(D11) rectification, through capacitor filtering 32(C27-C38) become direct current; Drive circuit provides the driving signal of adjustable dutycycle for inverter, make insulated gate bipolar transistor IGBT 33(IGBT1-IGBT4) the full-bridge type inverter that forms, be reverse into the alternating current that is about 30KHz, again through intermediate-frequency transformer 25(T1) transformation, through fast extensive diode 34 (D10, D12, D13, D14) rectification; Current transformer L1 receives P6 end in intermediate-frequency transformer primary side end obtaining current feedback signal " CS1; CS2 ", output XS1, XS2 provide voltage feedback signal to hold to P10, through resistance R 33, R34, R35, diode D17, D18, capacitor C 42 voltage division processing, obtain reliable, burning voltage feedback signal " MUF " to control circuit; Make the whole source of welding current form closed loop, thereby export controlled, dc source for welding stably;
Panel deixis: current-limiting resistance (R36, R37) is respectively power supply indicator LED1, abnormal indicator lamp LED2 provides reliable voltage to receive P13 port
Welding current regulates: potentiometer RP1 is through adjustable resistance VR2,, resistance R 38 voltage division processing receive P16 port and obtain given signal " IP ", another SW1 is MMA/TIG functional select switch.
Abnormity protection function: temperature controller is received P15, when working action, signal " OHT1 " sends to control circuit.
Preset current shows: " IREF " signal carries out voltage division processing through resistance R 32, capacitor C 103, adjustable resistance VR1 and receives P9 port and provide preset signal for digital display meter.
RLY is that blower fan driving voltage makes the work of Q1 FET, ensures blower fan and soft starting circuit normal operation.
Claims (10)
1. the contravariant DC arc welder of a high arcing time factor, comprise housing and wiring board and the electric elements in described housing are set, on the front and rear panel of described housing, there is respectively air inlet and air outlet, the described air inlet place being positioned on described rear plate is provided with blower fan, it is characterized in that: in described housing, be also provided with an insulating barrier be arrangeding in parallel with described wiring board, between described insulating barrier and described wiring board, be respectively arranged with two power radiators and output rectification radiator, the two ends of two described power radiators and two described output rectification radiators are arranged on respectively the two ends up and down of described insulating barrier and described wiring board, two described power radiators, two described output rectification radiators and described insulating barrier surround the heat dissipation channel for electric elements heat radiation.
2. the contravariant DC arc welder of high arcing time factor as claimed in claim 1, it is characterized in that: described electric elements comprise main transformer and electrochemical capacitor, described main transformer is arranged between two described output rectification radiators, and described electrochemical capacitor is arranged between two described power radiators.
3. the contravariant DC arc welder of high arcing time factor as claimed in claim 1, it is characterized in that: described electric elements also comprise a plurality of IGBT and fast recovery diode, described IGBT is arranged on respectively two described power radiator outsides, and described fast recovery diode is arranged on respectively the outside of two described output rectification radiators.
4. the contravariant DC arc welder of high arcing time factor as claimed in claim 1, it is characterized in that: described electric elements also comprise the rectifier bridge on the described power radiator that is arranged on described wiring board upper end, on described rectifier bridge right side, be provided with auxiliary electrical source plate, the two ends of described auxiliary electrical source plate are arranged on respectively on the described power radiator and described output rectification radiator of upper end.
5. the contravariant DC arc welder of high arcing time factor as claimed in claim 1, is characterized in that: on the rear plate in described housing, be positioned at described air inlet top and be provided with power switch and inlet wire port.
6. the contravariant DC arc welder of high arcing time factor as claimed in claim 1, it is characterized in that: two described output rectification radiators are connected by output aluminium row, on header board in described housing, be positioned at described air outlet below and be provided with quick socket, described output aluminium row is connected on described quick socket.
7. the contravariant DC arc welder of high arcing time factor as claimed in claim 1, is characterized in that: the top of the header board in described housing is provided with electric current potentiometer and indicator lamp.
8. the contravariant DC arc welder of high arcing time factor as claimed in claim 1, is characterized in that: blower fan guard is installed on described air inlet.
9. the contravariant DC arc welder of high arcing time factor as claimed in claim 1, it is characterized in that: on described wiring board, there is the control circuit, input rectification circuit, filter circuit, full bridge inversion circuit, intermediate frequency transforming circuit and the output rectification circuit that are connected, after described input rectification circuit carries out rectification to industrial-frequency alternating current, input filter circuit is filtered into direct current, via full bridge inversion circuit inversion, be high-frequency alternating current, then export after described intermediate frequency transforming circuit transformation is by output rectification circuit rectification.
10. the contravariant DC arc welder of high arcing time factor as claimed in claim 1, it is characterized in that: the described rectifier bridge D11, the D15 that are connected form described input rectification circuit, the described electrochemical capacitor C27-C28 being connected forms described filter circuit, the IGBT1-IGBT4 being connected forms described full bridge inversion circuit, fast recovery diode D10, the D12, D13, the D14 that are connected form described output rectification circuit, and described intermediate frequency transforming circuit is main transformer T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655790.2A CN103624364A (en) | 2013-12-06 | 2013-12-06 | High-duty inverter type direct current arc welding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655790.2A CN103624364A (en) | 2013-12-06 | 2013-12-06 | High-duty inverter type direct current arc welding machine |
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| CN103624364A true CN103624364A (en) | 2014-03-12 |
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| CN201310655790.2A Pending CN103624364A (en) | 2013-12-06 | 2013-12-06 | High-duty inverter type direct current arc welding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738027A (en) * | 2017-09-28 | 2018-02-27 | 深圳力科电气有限公司 | The safe cooling system of inversion bonding machine |
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| CN203062066U (en) * | 2013-01-23 | 2013-07-17 | 德力西(杭州)变频器有限公司 | Inverter-type pulse MIG/ MAG (metal inert-gas welding/metal active-gas welding) welding machine |
| CN203156210U (en) * | 2013-01-23 | 2013-08-28 | 德力西(杭州)变频器有限公司 | Inverter type alternating current-direct current pulsed argon arc welding machine |
| CN203778928U (en) * | 2013-12-06 | 2014-08-20 | 温岭万顺机电制造有限公司 | High-duty-cycle inversion type direct-current arc welder |
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| CN2258444Y (en) * | 1995-09-19 | 1997-07-30 | 邱光 | Inverse type dc electric welding machine |
| US20070187376A1 (en) * | 2003-11-26 | 2007-08-16 | Illinois Tool Works Inc. | Welder or Cutter Using an Energy Storage Device With Or Without a Charger |
| JP2011156590A (en) * | 2010-01-05 | 2011-08-18 | Kosen:Kk | Welding method |
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| CN107738027A (en) * | 2017-09-28 | 2018-02-27 | 深圳力科电气有限公司 | The safe cooling system of inversion bonding machine |
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Application publication date: 20140312 |