Portable alternating-current and direct-current arc welding generator

Abstract

The invention provides a portable alternating-current and direct-current arc welding generator. The generator comprises an internal-combustion engine, a generator and a bridge rectifier, the generatoris composed of a stator and a rotor. The stator is arranged in the middle of the rotor to form an outer rotor generator; the stator is composed of a stator iron core and a winding. A rectangular groove is axially formed in the outer circle of the stator iron core; a stator winding is wound in a snake shape and embedded in the rectangular groove in the outer circle of the stator iron core in a layered mode, the diameter of enameled wires of the stator winding is matched with the width of the rectangular groove, each layer of enameled wires of the stator winding forms an independent loop, and the stator winding of the independent loop outputs different current densities or voltages in parallel or in series. The output end of the stator winding is connected with the alternating-current inputend of the bridge rectifier, and the direct-current output end of the bridge rectifier is connected with a filter capacitor in parallel. And under the condition that the rotating speed of the rotor is constant, the current output density is large, the quality is high, the carrying is convenient, construction is not limited by a power supply, the cost is low, and the popularization is facilitated.

Description

technical field [0001] The invention relates to the technical field of electric welding machines, in particular to a portable AC / DC arc welding generator with power generation function. Background technique [0002] The disadvantage of the prior art DC welding machine is that it must rely on the AC power supply of the grid, and the welding machine cannot be used for construction work in an environment without a grid. Contents of the invention [0003] The object of the present invention is to provide a portable AC / DC arc welding generator powered by an internal combustion engine. [0004] A portable AC / DC arc welding generator of the present invention is realized in the following manner: [0005] Including internal combustion engine, generator and bridge rectifier. The generator is composed of a stator and a rotor. The stator is arranged in the middle of the rotor to form an external rotor generator. The stator is composed of a stator core and a stator winding. The outer ...

AI Technical Summary

Problems solved by technology

[0002] The disadvantage of the existing DC welding machine is that it must rely on the AC power supply of the power grid, and it is impossible to use the welding machine for construction work in an environment without a power grid.

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