Energy saver of alternating current welding machine

An energy saver, alternating current technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problems of inability to solve the safety and loss of electric welding machines, operator safety threats, reduce electric shock prevention, etc., to achieve reasonable structure and operation. Stable and energy saving effect

Inactive Publication Date: 2010-11-10
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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Problems solved by technology

[0002] AC welding machine is an important processing tool in industries such as machinery, automobile manufacturing and building construction. Currently, the AC welding machine commonly used is always charged as long as it is connected to the power supply. When welding is interrupted, the secondary no-load voltage of the welding machine rises to 70-90V, which greatly exceeds the safe voltage of the human body, which is prone to electric shock accidents and threatens the safety of operators
Simultaneously, according to theoretical calculation and actual measurement,

Method used

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  • Energy saver of alternating current welding machine
  • Energy saver of alternating current welding machine

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Embodiment Construction

[0006] Further description will be made below in conjunction with the accompanying drawings.

[0007] figure 1 Among them, the primary side of the welding machine transformer B1 is connected in series with the AC contactor JQ controlled by the relay J1. 2 It can be directly connected to the power supply, and forms a 12V DC power supply with the rectifier bridge D1, voltage regulator integrated block IC1, filters C1 and C2. The control circuit is composed of a trigger circuit and an oscillating circuit composed of integrated blocks IC2, IC3 and resistance-capacitance components. The input terminal of the trigger circuit integrated block IC2 is connected to the AC transformer HL on the secondary side of the welding machine transformer B2 through the resistance R6, diode D2 The input terminal of IC2 is also connected with capacitor C3, parallel voltage regulator tube DW1 and connected resistors R1~R5; the input terminal of oscillator circuit integrated block IC3 is biased by res...

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Abstract

The invention discloses an energy saver of an alternating current welding machine, which comprises a control circuit consisting of a trigger circuit and an oscillation circuit, wherein the input end of the trigger circuit and the output end of the oscillation circuit are respectively connected to a secondary detection circuit of a transformer of the welding machine. Therefore, when the welding machine works, a power supply is automatically switched on, when the welding machine stops working, the power supply is automatically switched off, the energy saver is energy-saving and safe when carrying zero load, the circuit design is reasonable, the use is convenient, and the energy saver can not only transform the existing welding machine, but also be used for producing a new safe and energy-saving welding machine.

Description

technical field [0001] The invention belongs to the field of welding technology, in particular to an energy saver for an AC welding machine. Background technique [0002] AC welding machine is an important processing tool in industries such as machinery, automobile manufacturing, and building construction. Currently, the AC welding machine commonly used is always charged as long as it is connected to the power supply. When welding is interrupted, the secondary no-load voltage of the welding machine rises to 70-90V, which greatly exceeds the safe voltage of the human body, which is prone to electric shock accidents and threatens the safety of operators. Simultaneously, according to theoretical calculation and actual measurement, the energy consumption of the AC welding machine is also very large when it is no-load, which is 6-10% of the total capacity. The reduction of the no-load voltage of the welding machine can prevent electric shock. The method of voltage, such as using...

Claims

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Application Information

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IPC IPC(8): B23K9/10
Inventor 于乾波
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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