A Welding Power Supply Device with Low Impact Load
A low-impact load, welding power supply technology, applied in the direction of welding equipment, electrode characteristics, arc welding equipment, etc., can solve the problems of three-phase load, unbalance, automatic control system and other equipment failures with large impact on the power grid, etc., to reduce the current The effect of increasing the output and operating voltage and reducing the impact load
Active Publication Date: 2018-01-16
LIUZHOU VOCATIONAL & TECHN COLLEGE +1
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Problems solved by technology
[0002] In the modern machinery manufacturing industry, especially in automobile manufacturing and other enterprises, various electric welding equipment such as pressure welding machines are widely used. Most of these electric welding machines belong to single-phase large impact loads, and are characterized by high current and intermittent , has a great impact on the power grid and causes intermittent short-term three-phase load unbalance, which not only affects the normal and reliable operation of various electrical equipment such as engines, transformers and motors, but even causes equipment failures such as automatic control systems; at the same time , the welding current control thyristor of the existing DC welding machine is easily broken down due to the impact of high voltage and high current, resulting in the failure of the welding machine, reducing the reliability of the welding machine and increasing the maintenance cost
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[0027] A welding power supply device with low impact load includes a three-phase rectifier circuit module 1 and a welding output unit. The welding output unit includes a welding power output module 2, a welding tool 3, an arc ignition auxiliary device 4, a welding auxiliary device 5 and Thyristor I, the three-phase rectifier circuit module 1 is connected to a three-phase AC power supply.
[0028] The welding power output module 2 is connected to the three-phase rectifier circuit module 1, the welding power output module 2 is connected to the welding tool 3, and the thyristor I is connected in series between the welding power output module 2 and the welding tool 3. The input end of the welding power output module 2 is connected to the two output ends of the three-phase rectifier circuit module 1, the two output ends of the welding power output module 2 are connected to the input end of the welding tool 3, and one of the welding power sources is output A thyristor I is connected in...
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The invention relates to a welding power supply device with low impact load. The welding power supply device comprises a three-phase rectification circuit module and a welding output unit; the welding output unit includes a welding power supply output module, a welding tool, an arc striking auxiliary device, a welding auxiliary device and a thyristor I; and the three-phase rectification circuit module is connected with a three-phase alternating-current power supply. The welding power supply device with low impact load enables the welding tool to obtain arc striking voltage higher than the voltage, of a direct-current power supply, output by the three-phase rectification circuit module through the arc striking auxiliary device, and enables a welding capacitor to output welding current with the welding power supply output module through the welding auxiliary device when the welding tool normally welds, and greatly reduces the impact load of a power grid.
Description
Technical field [0001] The invention relates to an arc welding power supply device, in particular to a welding power supply device with low impact load. Background technique [0002] In modern machinery manufacturing industry, especially automobile manufacturing and other enterprises, various electric welding equipment such as pressure welding machines are used in large quantities. This kind of electric welding machines are mostly single-phase large impact loads, and they are characterized by high current and intermittent. , The impact on the power grid is great and causes intermittent short-term unbalance of the three-phase load, which not only affects the normal and reliable operation of various electrical equipment such as engines, transformers and motors, but even causes the failure of automatic control systems and other equipment; , The welding current control thyristor of the existing DC electric welding machine is easily broken down due to the impact of high voltage and hi...
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IPC IPC(8): B23K9/10B23K9/24
CPCB23K9/105B23K9/24
Inventor 谭琛黄力覃日强陈超山陈胜裕覃轶科
Owner LIUZHOU VOCATIONAL & TECHN COLLEGE