Structure of IGBT inverter welding machine with two welding functional modules

Abstract

The invention relates to a structure of an IGBT inverter welding machine with two welding functional modules. The structure comprises an outer housing and an inner circuit board; the circuit board mainly comprises six parts which are separately a drive plate, a control panel, a current detecting plate, an IGBT plate, a fast recovery circuit board and a panel control board; the control panel is connected to the panel control board, a control transformer and the drive plate; the control transformer is used for supplying power to the control panel; the drive plate is connected to the control panel, the IGBT plate and the current detecting plate; and under the action of the control panel, the drive plate generates a drive signal which can reliably drive each IGBT to work, so that stable operation of an inverter circuit is guaranteed. According to the structure, the performance problem, the reliability problem, the production efficiency problem and the manufacturing and transporting cost problem of multifunctional welders are solved very well by adopting a control circuit system consisting of a two-chip micro processor, a single-chip micro processor and the like and optimizing the structural design of a welding machine control circuit, the structural design of a circuit board and the structural design of each part, so that market competitiveness of products is improved.

Description

technical field

[0001] The invention relates to a structure of an IGBT inverter welding machine with two welding function modules, belonging to the technical field of inverter welding machines. technical background

[0002] At present, the competition in the inverter MIG / MAG gas shielded welding machine product market is very fierce, which is not only reflected in the advancement and advantages of technology, but also largely depends on the design aspects such as the function and structure of the welding machine.

[0003] In the domestic and foreign markets, the rated current of IGBT tube inverter MIG / MAG gas shielded welding machines is usually at the level of 140~500A (load duration 100~35%). If the current is less than 260A, the IGBT usually uses a single tube. However, if the current is greater than 260A, the IGBT usually uses a module. Some of these welding machine products only have a single MIG / MAG gas shielded welding function, and their application range will be l...

Examples

Embodiment Construction

[0029] The wire feeding mechanism, the welding torch and the shielding gas source part involved in the present invention mainly include the wire feeding mechanism, the gas shielded welding torch and the shielding gas cylinder. These parts are standard auxiliary parts in addition to the welder of the present invention. It is also available in the market. This patent specification only illustrates the relationship between these parts and the present invention. During gas shielded welding, the plug part of the control line on the wire feeding mechanism is connected to the aviation socket on the front panel of the welding machine (35, the number represents the attached figure 1 The part codes in, the same below) make corresponding connections. The welding torch is matched and connected with the welding torch seat of the wire feeding mechanism. The welding wire is mounted on the wire spool of the wire feed mechanism. The welding wire can pass through the wire feeding wheel and ...

technical field

[0001] The invention relates to a structure of an IGBT inverter welding machine with two welding function modules, belonging to the technical field of inverter welding machines. technical background

[0002] At present, the competition in the inverter MIG / MAG gas shielded welding machine product market is very fierce, which is not only reflected in the advancement and advantages of technology, but also largely depends on the design aspects such as the function and structure of the welding machine.

[0003] In the domestic and foreign markets, the rated current of IGBT tube inverter MIG / MAG gas shielded welding machines is usually at the level of 140~500A (load duration 100~35%). If the current is less than 260A, the IGBT usually uses a single tube. However, if the current is greater than 260A, the IGBT usually uses a module. Some of these welding machine products only have a single MIG / MAG gas shielded welding function, and their application range will be l...

Examples

Embodiment Construction

[0029] The wire feeding mechanism, the welding torch and the shielding gas source part involved in the present invention mainly include the wire feeding mechanism, the gas shielded welding torch and the shielding gas cylinder. These parts are standard auxiliary parts in addition to the welder of the present invention. It is also available in the market. This patent specification only illustrates the relationship between these parts and the present invention. During gas shielded welding, the plug part of the control line on the wire feeding mechanism is connected to the aviation socket on the front panel of the welding machine (35, the number represents the attached figure 1 The part codes in, the same below) make corresponding connections. The welding torch is matched and connected with the welding torch seat of the wire feeding mechanism. The welding wire is mounted on the wire spool of the wire feed mechanism. The welding wire can pass through the wire feeding wheel and ...

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