Welding system of modular type

A welding system, comprising:

• a main module provided with an outer casing;
• said outer casing having an input port for a connection to a source of external electrical power;
• an electric generator housed within said outer casing and configured to adapt electrical characteristics of an electrical power received on input to a first type of welding;
• said outer casing having at least an output port for a connection, by an electrical conductor, to a welding torch, and wherein an adapted electrical power is supplied to said output port;
• an electronic control unit housed within said outer casing and configured to control functionality of said electric generator;
• said main module comprising, on said outer casing, a mechanical and electrical connection unit of a first type,
• said welding system further comprising at least an auxiliary module—provided with an outer casing housing:
• an electric generator configured to adapt the electrical characteristics of an electrical power received on input to a second type of welding;
• at least a mechanical and electrical connection unit of a second type couplable to said mechanical and electrical connection unit of a first type of said main module to allow the mechanical coupling of a reversible type to said main module and to establish an electrical power connection and a data connection between said main module and said auxiliary module, said electrical power connection being configured to allow at least a flow of an electrical power from said main module to said auxiliary module,
• wherein the welding system is configured, when said main module is mechanically and electrically coupled to said auxiliary module, to:
• transmit, by said electrical power connection, the power received on input on said input port or the electric power adapted by said electric generator of said main module from said main module to said auxiliary module;
• transmit, by said electric power connection, the electrical power adapted by said electric generator of said auxiliary module to said output port of said main module,
• said mechanical and electrical connection unit of said first type comprises:
• first mechanical connection means;
• at least first electrical power connection means;
• at least first data connection means;
• said mechanical and electrical connection unit of said second type comprises:
• second mechanical connection means couplable to said first mechanical connection means;
• at least second electrical power connection means couplable to said first electrical power connection means;
• at least second data connection means couplable to said first data connection means;
• wherein said first and second electrical power connection means and said first and second data connection means being coupled to each other respectively when said auxiliary module is mechanically coupled to said main module by means of said first mechanical connection means and said second mechanical connection means,
• wherein said first electrical power connection means comprise at least a female connector provided with:
• a first conductor element in which a through hole is made, having an inlet mouth facing outwards with respect to said outer casing;
• a second conductor element arranged on the opposite side of said first conductor element with respect to said inlet mouth said second conductor element having a though hole, defined coaxially to said through hole of said first conductor element, said second conductor element being configured to move in relation to said first conductor element along a direction parallel to the direction of development of said holes from a first operating position, according to which said second conductor element is in contact with said first conductor element, to a second operating position, according to which said second conductor element is spaced apart and electrically isolated from said first conductor element and vice versa,
• wherein said second electrical power connection means comprise at least a male connector provided with:
• a first conductor element, in which a through hole is made according to the direction, exiting said outer casing;
• a second conductor element with a substantially longitudinal development inserted passing through said through hole, said second conductor element having the free end thereof protruding outwards with respect to said through hole for a predetermined height;
• an electrically isolated tubular element arranged between said first conductor element and said second conductor element so that said first conductor element and said second conductor element are electrically isolated from each other;
• wherein said through holes of said first conductor element and of said second conductor element are shaped so as to allow the passage of the free end of said second conductor element of said male connector and so that, at said first operating position, the overall height of said through holes is less than said height of said free end of said second conductor element of said male connector, wherein, when said male connector is connected to said female connector, said second conductor element of said male connector comes into contact with the bottom of said through hole of said second conductor element of said female connector, determining the translation of said female connector from said first operating position to said second operating position and determining a state of electrical contact between said first conductor elements of said male connector and of said female connector and between said second conductor elements of said male connector and of said female connector respectively, and a state of electrical isolation between said first conductor elements and said second conductor elements,
• or alternatively, said male connector is provided with:
• a first conductor element, in which a through hole is made according to the direction, exiting said outer casing;
• and said male connector being devoid of said second conductor element;
• wherein when said male connector is connected to said female connector, said first operating position of said female connector remains unaltered, thus, maintaining the electrical contact between said second conductor element and said first conductor element, and, at the same time, the electrical contact between said first conductor elements is established;
• wherein the main module is coupled to the auxiliary module, and thus, the first electrical power connection means are coupled to the second electrical power connection means, an electrical outward path flow of the electrical power is defined from the main module to the auxiliary module and an electrical return path flow of the adapted electrical power is defined from the auxiliary module to the main module;
• and the coupling of the male connector, devoid of the second conductor element, to the female connector allows a monodirectional electrical connection to be defined between the main module and the auxiliary module.