electric welding machine

Abstract

Electric welding machine, characterized in that a “male” built-in plug (2) for making an electrical connection with the mains power supply is integrated into the electric welding machine (1) as part of the housing of the electric welding machine (1).

Description

[0001] The present invention relates to an electric welding device according to the preamble of claim 1.

[0002] Electric welding equipment is generally well-known.

[0003] The present invention relates to the energy supply to the electric welding machine.

[0004] According to claim 1, the electric welding machine has a "male" built-in connector for establishing an electrical connection to the mains power supply as part of the housing of the electric welding machine. The built-in connector is an integral part of the electric welding machine.

[0005] This design offers advantages over other known embodiments where a connecting cable extends from the housing of the electric welding machine. A plug is attached to the free end of this cable.

[0006] This plug can be inserted into a socket of an extension cable for the power supply of known electric welding machines, whereby the plug of the extension cable is in turn inserted into a socket of a power supply network - usually on the wall.

[0007] Provided that the cable leading out of the housing of the known electric welding machines is long enough, the attached plug can also be plugged directly into a socket of a power supply network to provide power to the electric welding machine.

[0008] In contrast, the solution according to the present invention, which is a built-in plug integrated into the housing of the electric welding machine, has the advantage that it is not necessary to open the housing of the electric welding machine in order to connect a new cable inside the electric welding machine if the connecting cable used to supply power to the electric welding machine is damaged.

[0009] The connecting cable is a separate component in that it can be easily replaced and disposed of if damaged. The coupling of the connecting cable is disconnected from the plug of the electric welding machine, and the plug of the connecting cable is disconnected from the mains power outlet.

[0010] The damaged connecting cable can be disposed of. With a new connecting cable, the electric welding machine is ready for use again.

[0011] In addition to the simple replacement, the solution according to the present invention has the advantage that the restoration of the reliable operational capability of the electric welding machine can be carried out quickly and without in-depth knowledge of the electrical installation.

[0012] In the embodiment according to claim 2, the built-in plug of the electric welding device is designed as a Schuko plug.

[0013] This allows for a simple protective earth connection to be established in a corresponding standard electrical network by contacting the coupling with the plug. This corresponds, for example, to the standard for electrical installations in Germany.

[0014] In the embodiment according to claim 3, the plug-in connector has a “female” receptacle for a pin to establish a protective conductor connection between the plug-in connector of the electric welding device and the power supply line.

[0015] This allows for the simple establishment of a protective earth connection in a corresponding standard within the electrical grid by contacting the coupling with the plug. This corresponds, for example, to the standard in France. Particularly when referring back to claim 2 from claim 3, it proves advantageous that the plug has a "female" receptacle for establishing the protective earth connection. This "female" receptacle allows the plug to be used as a Schuko plug without the presence of a prong, which would otherwise be a hindrance. However, by inserting a prong into this female receptacle, a protective earth connection can also be established in other electrical grid standards without having to replace the plug.

[0016] An embodiment of the invention is shown in the drawing.

[0017] The only figure shown is the housing of an electric welding machine 1.

[0018] It can be seen that a built-in plug 2 is integrated into the housing of the electric welding machine.

[0019] This built-in plug 2 has two pins 3 and 4 for contacting a "phase-carrying" line of a power grid as well as a line of the power grid lying at the "neutral potential".

[0020] It can be seen that there are two contact surfaces, 5 and 6, which transform the plug into a Schuko plug. This establishes a protective earth connection if the coupling of the connecting cable has corresponding spring-loaded contact elements.

[0021] It can be seen that the plug connector 2 has a "female" opening 7, through which the protective conductor function is implemented internally in the electric welding machine 1. If the protective conductor connection to the coupling of the connecting cable is to be implemented above, a pin is inserted into this "female" opening 7, which protrudes accordingly to interact with the corresponding "female" opening in the coupling of the connecting cable.

[0022] Two more lines, 8 and 9, are shown, which are used to create the welded connection.

Claims

[1] Electric welding machine, characterized by , that a “male” built-in plug (2) for making an electrical connection with the mains power supply is integrated into the electric welding machine (1) as part of the housing of the electric welding machine (1). [2] Electric welding machine according to claim 1, characterized by , that the built-in plug d(2) of the electric welding device (1) is designed as a Schuko plug. [3] Electric welding machine according to claim 1 or 2, characterized by , that the built-in plug (2) has a “female” receptacle for a pin to establish a protective conductor connection between the built-in plug of the electric welding machine and the power supply line.

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