CN205852047U - CUT with manual electric arc welding PWM inverter type welding/cutting power supply - Google Patents
CUT with manual electric arc welding PWM inverter type welding/cutting power supply Download PDFInfo
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- CN205852047U CN205852047U CN201620845147.5U CN201620845147U CN205852047U CN 205852047 U CN205852047 U CN 205852047U CN 201620845147 U CN201620845147 U CN 201620845147U CN 205852047 U CN205852047 U CN 205852047U
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Abstract
The CUT of a kind of band manual electric arc welding PWM inverter type welding/cutting power supply, including soldering turret and burning torch；Its circuit includes: current rectifying and wave filtering circuit, inverter circuit, main transformer isolation circuit, a secondary rectification circuit；Power supply is electrically connected with current rectifying and wave filtering circuit, inverter circuit, the main transformer isolation former limit of circuit successively, and main transformer isolation circuit secondary is electrically connected with secondary rectification circuit；Main transformer isolation circuit has two secondary；Secondary rectification circuit has two, respectively half-wave rectifying circuit and bridge rectifier；Use bridge rectifier in order to obtain higher output voltage；One secondary of main transformer isolation circuit is electrically connected with half-wave rectifying circuit and soldering turret successively, and another secondary of main transformer isolation circuit is electrically connected with bridge rectifier and burning torch successively.The logical function that can simultaneously realize manual welding on CUT of this utility model, integrated, reduce equipment cost, volume is light, and the carrying being also convenient for workman is carried.
Description
Technical field:
This utility model relates to CUT technical field, particularly to a kind of band manual electric arc welding PWM contravariant
The CUT of welding/cutting power supply.
Background technology:
Plasma cutting method is the high-duty fusing cutting method with plasma arc as thermal source, has that cutting speed is fast, cuts
Mouthful heat affected area is narrow, workpiece deformation is little, can the advantages such as cutting material is extensive, easy to operate.
Cutting inversion transformation technique is for arc cutting load characteristic and cutting technique requirement, application modern power electronic scientific principle
Opinion and Theory of Automatic Control, it is achieved the efficient conversion of electric energy and control application branch of learning.Its research contents is across welding electricity
Arc physics, cutting technique, power electronic and the every field such as electromagnetic device and switch circuit topology.It is welding electricity as one
Arc or arc cutting provide the supply unit of voltage x current, and welding/cutting power supply is the most just sent out towards direction efficient, energy-conservation, high-quality
Exhibition.
Plasma cutting has polytypic at present, and manual welding kind is the most, the characteristic of CUT and manual electric arc welding
It is dropping characteristic, it may be assumed that time idle, floating voltage is high, and during work, voltage drops to low-voltage, big electric current.This is for inciting somebody to action
Manual electric arc welding and CUT organically combine and provide excellent basis.
Summary of the invention:
In consideration of it, be necessary to design the CUT of a kind of band manual electric arc welding PWM inverter type welding/cutting power supply.
The CUT of a kind of band manual electric arc welding PWM inverter type welding/cutting power supply, including soldering turret and burning torch；
The circuit of the CUT with manual electric arc welding PWM inverter type welding/cutting power supply includes: a rectifying and wave-filtering electricity
Road, inverter circuit, main transformer isolation circuit, secondary rectification circuit；Wherein, power supply be electrically connected with successively current rectifying and wave filtering circuit,
Inverter circuit, main transformer isolate the former limit of circuit, and main transformer isolation circuit secondary is electrically connected with secondary rectification circuit；Rectifying and wave-filtering
Circuit is for being converted to direct current by the industrial frequency AC of input, and secondary rectification circuit for being converted to direct current output by high-frequency ac；
Main transformer isolation circuit has two secondary；
Secondary rectification circuit has two, respectively half-wave rectifying circuit and bridge rectifier；Use bridge rectifier
In order to obtain higher output voltage；
One secondary of main transformer isolation circuit is electrically connected with half-wave rectifying circuit and soldering turret successively, and main transformer isolates the another of circuit
One secondary is electrically connected with bridge rectifier and burning torch successively.
Inverter circuit includes the inverter bridge being made up of 4 isolated gate FET power switching devices, is provided with point in it
The driving resistance not being connected with 4 isolated gate FET power switching devices.
Preferably, main transformer isolation circuit is high-power amorphous transformer.
Preferably, a current rectifying and wave filtering circuit includes: air switch, three-phase commutation bridge, PTC soft-start circuit；Wherein, empty
Air cock one termination power, the other end is sequentially connected with three-phase commutation bridge, PTC soft-start circuit.
The logical function that can simultaneously realize manual welding on CUT of this utility model, integrated, reduce equipment
Cost, volume is light, and the carrying being also convenient for workman is carried.
Accompanying drawing illustrates:
Accompanying drawing 1 is the circuit diagram of the CUT of a web manual electric arc welding PWM inverter type welding/cutting power supply.
In figure: main transformer isolation circuit 1.
Detailed description of the invention:
As it is shown in figure 1, the CUT of a kind of band manual electric arc welding PWM inverter type welding/cutting power supply, including soldering turret and
Burning torch；
The circuit of the CUT with manual electric arc welding PWM inverter type welding/cutting power supply includes: a rectifying and wave-filtering electricity
Road, inverter circuit, main transformer isolation circuit 1, secondary rectification circuit, main control circuit (not shown)；Filter circuit, inverter circuit,
Secondary rectification circuit, main control circuit are the prior art of maturation, therefore do not describe in detail；Current from power source sequentially passes through a rectification
Filter circuit, inverter circuit, main transformer isolate the former limit of circuit 1, and main transformer isolation circuit 1 secondary is electrically connected with secondary rectification circuit；
Main control circuit includes that use the pwm pulse modulation circuit of primary current peak value feedback, the driving signal that are sequentially connected with amplify electricity
Road and driving isolation circuit；Current rectifying and wave filtering circuit for being converted to direct current, secondary rectified current by the industrial frequency AC of input
Road for being converted to direct current output by high-frequency ac；
Main transformer isolation circuit 1 has two secondary；
Secondary rectification circuit has two, respectively half-wave rectifying circuit and bridge rectifier；Use bridge rectifier
In order to obtain higher output voltage；
One secondary of main transformer isolation circuit 1 is electrically connected with half-wave rectifying circuit and soldering turret successively, main transformer isolation circuit 1
Another secondary is electrically connected with bridge rectifier and burning torch successively.
Inverter circuit includes the inverter bridge being made up of 4 isolated gate FET power switching devices, is provided with point in it
The driving resistance not being connected with 4 isolated gate FET power switching devices.
In the present embodiment, main transformer isolation circuit 1 is high-power amorphous transformer.One time current rectifying and wave filtering circuit includes:
Air switch, three-phase commutation bridge, PTC soft-start circuit；Wherein, air switch one termination power, the other end is sequentially connected with three-phase
Rectifier bridge, PTC soft-start circuit.
Claims (3)
1. the CUT of a band manual electric arc welding PWM inverter type welding/cutting power supply, it is characterised in that include soldering turret and cut
Rifle；
The circuit of the CUT with manual electric arc welding PWM inverter type welding/cutting power supply includes: current rectifying and wave filtering circuit, inverse
Power transformation road, main transformer isolation circuit, secondary rectification circuit；Wherein, power supply is electrically connected with current rectifying and wave filtering circuit, an inversion electricity successively
Road, the main transformer isolation former limit of circuit, main transformer isolation circuit secondary is electrically connected with secondary rectification circuit；
Main transformer isolation circuit has two secondary；
Secondary rectification circuit has two, respectively half-wave rectifying circuit and bridge rectifier；
One secondary of main transformer isolation circuit is electrically connected with half-wave rectifying circuit and soldering turret successively, and main transformer isolates another of circuit
Secondary is electrically connected with bridge rectifier and burning torch successively.
2. the CUT of band manual electric arc welding PWM inverter type welding/cutting power supply as claimed in claim 1, its feature exists
In, main transformer isolation circuit is high-power amorphous transformer.
3. the CUT of band manual electric arc welding PWM inverter type welding/cutting power supply as claimed in claim 1, its feature exists
In, one time current rectifying and wave filtering circuit includes: air switch, three-phase commutation bridge, PTC soft-start circuit；Wherein, air switch one terminates
Power supply, the other end is sequentially connected with three-phase commutation bridge, PTC soft-start circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620845147.5U CN205852047U (en) | 2016-08-05 | 2016-08-05 | CUT with manual electric arc welding PWM inverter type welding/cutting power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620845147.5U CN205852047U (en) | 2016-08-05 | 2016-08-05 | CUT with manual electric arc welding PWM inverter type welding/cutting power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205852047U true CN205852047U (en) | 2017-01-04 |
Family
ID=57658235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620845147.5U Active CN205852047U (en) | 2016-08-05 | 2016-08-05 | CUT with manual electric arc welding PWM inverter type welding/cutting power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205852047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695095A (en) * | 2017-03-06 | 2017-05-24 | 宁夏吴忠市好运电焊机有限公司 | Built-in air pump integrated inverted type plasma cutting machine |
| CN112548271A (en) * | 2020-12-14 | 2021-03-26 | 上海威特力焊接设备制造股份有限公司 | Automatic change multi-functional AC/DC welding machine of polarity |
-
2016
- 2016-08-05 CN CN201620845147.5U patent/CN205852047U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695095A (en) * | 2017-03-06 | 2017-05-24 | 宁夏吴忠市好运电焊机有限公司 | Built-in air pump integrated inverted type plasma cutting machine |
| CN112548271A (en) * | 2020-12-14 | 2021-03-26 | 上海威特力焊接设备制造股份有限公司 | Automatic change multi-functional AC/DC welding machine of polarity |
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