Single-body concentration-type small welding machine

Abstract

A single-body concentration-type small welding machine comprises: a single unit constructed in a single-body integration type; a main body unit on which the single unit is installed; a handle unit integrally coupled to the main body unit; and welding rod holders installed on a support unit, which is fixed to the main body unit, wherein the main body unit is made compact by the single unit comprising a heat sink, a power input / output circuit unit comprising a rectification unit and inverters on a single first printed board installed on the lower surface of the heat sink, a system direct current supply unit comprising components for rectifying commercial power mounted on a different single second printed board installed on the upper surface of the heat sink, and system operation control units comprising a control unit having a pulse width modulation (PWM) circuit for controlling the system output power. System components are divided into a heat-generating component group and a non-heat-generating component group, thereby improving the heat-radiating effect, and proper arrangement of independent components not only diversifies the overall system configuration, but also makes the design simple and compact, thereby providing an integrated small welding machine that can be carried conveniently.

Description

technical field [0001] The present invention relates to a portable welding device, and in particular, to providing a single-type centralized small-sized welding machine, in which a welding rod bracket is integrally provided on the front face to centralize the main components of the system Arranged in the main body, so the above-mentioned single centralized small-sized welding machine is miniaturized and easy to move, so it can be used anytime and anywhere. Background technique [0002] The conventional inverter welding machine has an inverter power supply device. The above-mentioned inverter power supply device uses a plurality of electronic switches. After the direct current is converted to alternating current, the voltage is reduced using a transformer and rectified again to obtain direct current. Inverter power supply units output high-voltage, high-current power using a considerable number of electronic components and large, heavy transformers that convert industrial po...

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Problems solved by technology

[0008] However, if the above-mentioned power supply device is to be assembled into a welding device, a transmission cable for using a welding rod bracket and an industrial power supply is also required, and the structure for installing a part called a chassis for separating Heat-generating and non-heat-generating parts require additional space for installing relatively heavy voltage drop transformers and reactors in addition to the heat-generating parts attached to the heat sink, so there are restrictions on size reduction and weight reduction

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