Generating and electrowelding dual-purpose machine

Abstract

The invention discloses a generating and electrowelding dual-purpose machine which comprises a generator, an inverter, a power supply output end, an electrowelding output end, an electrowelding device and a socket. The generator is connected with the inverter, the inverter is connected with the power supply output end and the electrowelding output end, the power supply output end is connected with the socket, the electrowelding output end is connected with the electrowelding device, wherein the internal circuit of the inverter, the internal circuit of the electrowelding output end and the internal circuit of the power supply output end are mainly composed of SPMW modulation modules, isolation driving modules and H-bridge output modules, and the SPMW modulation modules, the isolation driving modules and the H-bridge output modules are connected in sequence. According to the generating and electrowelding dual-purpose machine, secondary side windings are wound on filter inductance output by an H-bridge, high-frequency electric source energy is output in a coupling mode and the purpose of adjustable electric currents is achieved through the mode of connecting adjustable electrical inductance in series to change secondary side coupling amount, the structural characteristics of SPWM high-frequency modulation are fully used to enable a variable-frequency power source to achieve the purpose of dual-utilization of one machine, and the fact that the power supply function is restricted is overcome.

Description

technical field [0001] The invention belongs to the technical field of generators, in particular to a dual-purpose generator for power generation and electric welding. Background technique [0002] The power generation welding machine is also called the power generation and welding dual-purpose machine, which can be used as a generator and also as a welding machine. The structure of the existing power generation electric welding machine generally adopts a generator connected to the inverter, and the output end of the power supply and the output end of the electric welding are both connected to the inverter, so that the output power of the output end of the power supply is affected by the output end of the electric welding. function, the power supply function is limited, it cannot meet the power supply of higher power, and the application occasions are narrow. At present, there is a digital power generation welding machine (Chinese Patent Publication No. 202586635U), such as...

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Problems solved by technology

The structure of the existing power generation electric welding machine generally adopts a generator connected to the inverter, and the output end of the power supply and the output end of the electric welding are both connected to the inverter, so that the output power of the output end of the power supply is affected by the output end of the electric welding. function, the power supply function is limited, it cannot meet the power supply of higher power, and the application occasions are narrow. At present, there is a digital power generation welding machine (Chinese Patent Publication No. 202586635U), such as figure 2 As shown, it includes a generator, an inverter, a power supply output terminal and an electric welding output terminal. The generator is connected to the inverter, the power supply output terminal is separated from the electric welding output terminal, the power supply output terminal is connected to the generator, and the electric welding output terminal is connected to the The inverter connection adopts the parallel combination of the power generation end and the inverter, which solves the problem that the existing general power supply function is limited, but because two sets of equipment are used on the generator, one end reaches the electric welding through the inverter. As a result, the generator output is used at the other end, and its cost is relatively high, which is not suitable for the current society's requirements for energy saving, and it is relatively larger in size, limited in use space, and higher in energy consumption.

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