Non-leakage series energy-saving multifunctional arc-welding power supply
An arc welding power supply and multi-functional technology, applied in the direction of arc welding equipment, welding equipment, electrical component structure associations, etc., can solve the problems of high repair rate, shortened life, reduced production speed, etc., to extend the life of the welder and the wire area reduction, the effect of reducing the number of wire turns
Inactive Publication Date: 2011-09-07
倪敏禄
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Problems solved by technology
Although these measures can improve some welding performance, they also bring problems such as high repair rate, reduced production speed, and shortened service life.
Method used
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[0015] exist figure 1 , the primary winding (W 1 ) The position of each functional tap should be determined according to the voltage required by the welding specification and combined with the actual situation of the transformer. Secondary arc pilot winding (W 22 ) tap is used to ensure that the transfer switch (K 1 ) switching process, its output voltage remains basically unchanged, maintaining the consistency of the arc current at each gear.
[0016] figure 2 It is the first embodiment of the present invention, which is used for DC manual arc welding. Large and small gear switch (K 2 ) In addition to the large and small selection of the supply current, it also controls the output voltage of the secondary arcing winding to be consistent when it is switched. The size of the AC capacitor (C) depends on the function and welding needs. It can be adjusted with a switch or replaced with a reactor. The reactor (L) can be made smaller because the rectified output waveform is...
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Abstract
The invention discloses a non-magnetic leakage series energy-saving multi-functional arc welding power supply. A main transformer adopts a ring-shaped transformer, a primary winding uses a tapped winding, and a secondary winding consists of an independent working winding and an arc-striking winding. The turn number and the sectional area of conducting wires of the working winding are determined according to welding instructions. The turn number of the arc-striking winding is determined by open-circuit voltage, and the current is determined by the power needed by arc striking. The working winding is connected in series with an electric reactor and then is connected with a set of rectifiers, the arc-striking winding is connected in series with an alternating current capacitor and then is connected with another set of rectifiers, and positive and negative electrodes of the two set of the rectifiers are connected in parallel to serve as output ends. The voltage of the secondary working winding is changed by changing the position of a tap of the primary winding to meet the requirements of various functions on the voltage. Accessories with various functions can be arranged inside a machine or on a terminal outside the machine. The arc welding power supply meets multi-function and multi-station requirements of a single machine, has the characteristics of high energy-saving amplitude, less copper and iron consumption, simple structure, mechanical production, low temperature rise, long service life, more functions, good welding quality and so on, and is suitable for various welding machines.
Description
Technical field [0001] The invention relates to the technical field of electric power generation, conversion and distribution. International Classification Number: H 02 h 7 / 07. Background technique [0002] Since the rotary DC arc welding generator was eliminated by the arc welding transformer with reduced characteristics in the 1960s and 1970s, it has not changed fundamentally. Even the inverter arc welding power supplies that have been gradually introduced in the past ten years, most of them still use this method of enhancing magnetic flux leakage to meet their reduced external characteristics. A secondary winding of this kind of arc welding power supply needs to provide the arc ignition voltage, and the voltage must be reduced to about 30 volts during welding. Generally, the voltage will be reduced by about half, that is, the power factor will also be reduced by about half. It must exist: low power factor (between 0.3-0.6), low efficiency (50-70%), low apparent power...
Claims
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IPC IPC(8): B23K9/10H01F27/40H01F27/24H01F27/28
CPCB23K9/1006
Inventor 倪敏禄
Owner 倪敏禄