Inverter welding machine and protection control circuit thereof
A protection control, inverter welding machine technology, applied in the direction of manufacturing tools, welding equipment, arc welding equipment, etc., can solve the problems of increasing the damage of inverter welding machines, unstable power supply, and reducing the reliability of inverter welding machines, etc., to achieve Improve product market competitiveness, increase reliability and service life, and improve the effect of rapid protection response
Active Publication Date: 2019-05-28
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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Problems solved by technology
[0002] With the development of inverter welding technology, arc welding machines are more and more widely used in household and industry. During use, there are often situations where the power supply is unstable when the power supply is just connected; The electronic devices in the welding machine have an impact, thereby increasing the probability of damage to the inverter welding machine and reducing the reliability of the inverter welding machine
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[0053] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.
[0054] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of...
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The invention provides an inverter welding machine and a protection control circuit thereof. The protection control circuit comprises a protection control module which is coupled to a timing control circuit of the inverter welding machine and controls the timing control circuit to output a low level when the protection control module and the timing control circuit are connected, a start-up protection module which is coupled to a power terminal and the protection control module, controls the protection control module and the timing control circuit to be connected when the inverter welding machine is connected to a power source and controls the protection control module to be disconnected from the timing control circuit after the inverter welding machine is connected to the power source fora preset period of time, a power failure protection module which is coupled to the power terminal and the protection control module and controls the protection control module and the timing control circuit to be connected when the voltage of the power source where the inverter welding machine is connected to is lower than a preset voltage value, and a manual protection module which is coupled to the power terminal and the protection control module and responses to user operation for controlling the protection control module and the timing control circuit to be connected. The reliability of theinverter welding machine is improved.
Description
technical field [0001] The invention relates to electrical components, in particular to an inverter welding machine and its protection control circuit. Background technique [0002] With the development of inverter welding technology, arc welding machines are more and more widely used in household and industry. During use, there are often situations where the power supply is unstable when the power supply is just connected; The electronic devices in the welding machine have an impact, thereby increasing the probability of damage to the inverter welding machine and reducing the reliability of the inverter welding machine. Contents of the invention [0003] The purpose of the present invention is to provide an inverter welding machine and its protection control circuit, so as to overcome the above-mentioned technical problems caused by the limitations and defects of related technologies at least to a certain extent. [0004] Other features and advantages of the invention wi...
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IPC IPC(8): B23K9/10
Inventor 不公告发明人
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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