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...

AI Technical Summary

Problems solved by technology

However, for this type of welding machine, different circuits, circuit boards and complete machine structure designs, different control principles and methods, layout and connection methods of circuit boards and complete machines, or different degrees of complexity of connection, the performance and reliability of their products , production process and production process are also completely different

These will affect the production cost and sales of the product and the market competitiveness of the product

For example, a welding machine with poor performance will have poor welding effect, and users will not like it; if the reliability is low, the welding machine will often break down, and dealers will no longer sell such products; if the cost is high, the sales price cannot be too high. Low

In this way, it will also affect the promotion and sales of products.

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