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Fronius International Gmbh patents (2015 archive)


Recent patent applications related to Fronius International Gmbh. Fronius International Gmbh is listed as an Agent/Assignee. Note: Fronius International Gmbh may have other listings under different names/spellings. We're not affiliated with Fronius International Gmbh, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "F" | Fronius International Gmbh-related inventors


11/26/15 / #20150342091

Heat sink and housing for an inverter with such a heat sink

A heat sink for cooling electronic power components arranged in a housing includes a cooling element having cooling fins arranged on a base surface, and a fan for intake of ambient air and for delivering the ambient air via the cooling fins of the cooling element, the cooling element having a recess, in which the fan is arranged spaced apart from the base surface. The fan includes a housing ring on the side facing away from the base surface of the cooling element, an intermediate space being formed between the bottom edge of the housing ring and the base surface of the cooling element. ... Fronius International Gmbh

11/19/15 / #20150333749

Circuit arrangement and method for controlling semiconductor switching element

In order to reduce the problems with sharp-edged control voltages of semiconductor switching elements, it is provided that the control terminal (6) of the semiconductor switching element (1) is connected to the output terminal (7) of the semiconductor switching element (1) via a ramp generation unit (5), and the ramp generation unit (5) flattens the sharply ascending and descending edges of the driver control voltage (vs) into the form of a ramp, in order to generate a transistor control voltage (vg) at the output of the ramp generation unit (5).. . ... Fronius International Gmbh

11/05/15 / #20150314387

Method for controlling a battery-powered welding device, and battery-powered welding device

The invention relates to a method for controlling a battery-powered welding device (1) and to a battery-powered welding device (1) comprising a battery (2) having a battery voltage (uin) and a battery current (iin) and comprising a welding controller (3) containing a boost converter (4) having at least a switch (5) and a buck converter (6) having at least one switch (7) for controlling a welding current (tout) and a welding voltage (uout) supplied to a welding torch (11). In order to achieve a high level of efficiency and dynamics and optimal welding characteristics, a switch (8) for bypassing the boost converter (4) is provided, which switch (8) is connected to a switch controller (9), which switch controller (9) is designed to close the switch (8) if the intermediate circuit voltage (uzw) between the boost converter (4) and the buck converter (6) is less than or equal to the battery voltage (uin), and to open the switch (8) if the boost converter (4) is activated.. ... Fronius International Gmbh

10/29/15 / #20150306695

Plug part and socket part for detachably connecting a tube elbow of a gas-cooled welding torch to a hose packet, and connecting device with such a plug part and socket part

The invention relates to a plug part (21) for detachably connecting a torch neck (19) of a gas-cooled welding torch (7) to a socket part (34) disposed on a hose package (20), comprising a cylindrical pipe element (22) with a flange (25) and with an axially extending channel (23) for a welding wire (9) and for a protective gas (5) and comprising a union nut (24) which is rotatably disposed on the pipe element (22) and which comprises an inner thread for connection to a corresponding outer thread on the socket part (34). The invention also relates to such a socket part (34). ... Fronius International Gmbh

10/22/15 / #20150298237

Method and device for monitoring inert gas during a welding process

The invention relates to a method and a device (30) for monitoring the inert gas (5) during a welding process performed using a welding torch (7), wherein at least one measurement variable (pi), which is dependent on the type of inert gas (5), is measured by means of at least one sensor (si). According to the invention, at least two measurement variables (pi) of the inert gas (5) are measured and the measured values (mi) of the at least two measurement variables (pi) of the inert gas (5) are compared with several stored values (mi′), which are associated with inert gas types (gi), of the at least two measurement variables (pi), and the inert gas type (gi), for which the assigned values (mi′) of the at least two measurement variables (pi) are closest to the measured values (mi) of the at least two measurement variables (pi)of the inert gas (5), is displayed.. ... Fronius International Gmbh

09/10/15 / #20150251266

Welding device

Device and method for welding a workpiece (2) having a welding torch (3) which can be mechanically coupled by a coupling element (4) to a hose bundle (5) for supplying the welding torch (3) at least with compressed air or with a protective gas, wherein compressed air applied to the coupling element (4) can be diverted by a diverting valve (10) provided in the coupling element (4) for actuating an actuator (7).. . ... Fronius International Gmbh

09/03/15 / #20150249349

Method and device for charging batteries

A method and to a device for charging batteries, in particular lead-acid batteries, having a predetermined end-of-charge voltage (uls). In order to charge the battery as efficiently and smoothly as possible, and in order to increase the service life of the battery, according to the invention the charge state of the battery is established before the charging process and a charging current (il) or a charging voltage (ul) is applied to the battery during the charging process and is regulated in such a manner that the charging voltage (ul) is increased during a predetermined charging time (t′charge) between a charge starting voltage (ula) and the end-of-charge voltage (uls).. ... Fronius International Gmbh

09/03/15 / #20150247598

Hose coupling

A device for releasable fixed holding of a welding wire in a welding wire guide is described. This device is characterised in that the welding wire guide includes a cage for radially displaceable braking bodies, wherein a locking cone surrounds the braking bodies, and that, of the two cooperating functional elements, formed on the one hand by the welding wire guide and on the other hand by the locking cone, one is mounted in a non-displaceable manner in a holder and the other is mounted to be axially displaceable against a spring force with respect to the non-displaceable functional element.. ... Fronius International Gmbh

07/02/15 / #20150185272

Determining insulation resistance for photovoltaics

Method and device for determining an insulation resistance riso of a photovoltaic system (1) with respect to earth potential (ep), comprising a dc-dc converter unit (4) which converts a first dc voltage generated by the photovoltaic generator (2) into a second dc voltage which is applied to an intermediate circuit (5) that temporarily stores the electrical energy, supplied by the photovoltaic generator (2), for a dc-ac converter unit (6) connected thereto, wherein the intermediate circuit (5) contains a reference node (bk) having an adjustable reference potential (bp), and comprising a measuring unit (7) which picks up the measuring voltages between the reference potential (bp) and the earth potential (ep) at different reference potentials (bp), and an evaluation unit (8) which evaluates the measuring voltages that have been picked up in order to determine the insulation resistance of the photovoltaic generator (2) of the photovoltaic system (1).. . ... Fronius International Gmbh

07/02/15 / #20150183043

Portable welding arrangement and method for operating a portable welding arrangement, said arrangement comprising a storage battery controlled in accordance with the operating mode of welding apparatus

The invention relates to a portable welding arrangement (1) comprising a welding apparatus (2) having an accumulator (3), a power source (4), a welding control means (5) and a connection (7) for a welding torch (8), wherein the operating mode of the welding apparatus (2) can be changed between a standby mode and a welding mode, and comprising a charging apparatus (17) that can be connected to a power supply network (21) and to the welding apparatus (2) and has a charge controller (20) for charging the accumulator (3). The invention also relates to a corresponding method for operating such a portable welding arrangement. ... Fronius International Gmbh

06/25/15 / #20150174682

Welding wire conveyor roller and feeding device for conveying welding wire

A welding wire conveyor roller for conveying a welding wire includes a receiving aperture for receiving a receiving pin, and a running surface for the welding wire, and a feeding device for conveying a welding wire includes a drive motor, at least two receiving pins arranged at a distance to each other, and at least two welding wire conveyor rollers with running surfaces for the welding wire which are placed upon the receiving pins by appropriate receiving apertures. For achieving improved conveying properties even with different welding wires, an area elastically deformable in the radial direction is arranged between the running surface and the receiving aperture of the welding wire conveyor rollers.. ... Fronius International Gmbh

06/18/15 / #20150171755

Switched mode power supply, inverter and string monitoring assembly comprising said type of switched mode power supply

The invention relates to a switched-mode power supply (14) for supplying the components of a photovoltaic system (1) with a constant dc output voltage (ua), comprising connections (15) for connecting to the photovoltaic modules (2) of the photovoltaic system (1) for providing a dc input voltage (ue), a dc/dc voltage converter (16) comprising at least one switch (17), a transformer (18), a control device (22) for controlling the at least one switch (17) at a switching frequency (fs) for obtaining the desired dc output voltage (ua), an output equalizing voltage (23) and connections (24) for providing the dc output voltage, as well as the inverter (4) and a string monitoring assembly (3) of a photovoltaic system (1). In order to obtain a dc output voltage (ua) with the losses as low as possible for a very wide range of dc input voltages (ue) between 200 v and 1500 v, the dc/dc voltage converter (16) is formed by a combination of flyback and forward converters having two serially arranged switches (17, 17′). ... Fronius International Gmbh

06/11/15 / #20150162748

Disabling the inverter of a photovoltaic installation in the event of theft

A method for operating an inverter (1) of a photovoltaic installation is specified, wherein a reference value/reference profile of at least one parameter of the photovoltaic installation is compared with an actual value/actual profile of said parameter. If the deviation between said actual value/actual profile and the reference value/reference profile exceeds a predefinable threshold, then the inverter function of the inverter (1) is at least temporarily disabled. ... Fronius International Gmbh

06/04/15 / #20150155745

Method and device for managing an energy generation unit

Device for an energy generation unit of a user's installation, which is connected to an energy supply network and to at least one energy consumption unit of the user's installation and comprises a programmable logic control which controls an internal energy consumption, by the energy consumption units of the user's installation, of the energy generated by the energy generation unit.. . ... Fronius International Gmbh

05/28/15 / #20150146464

Ac/dc voltage transformer and method of operation therefor

A method for actuating an ac/dc voltage transformer is specified, which has a dc voltage output between which at least one series circuit of at least two capacitors and at least one series circuit of n switching elements is arranged, where n≧4. A connecting point of the switching elements is connected to a connection of an ac voltage input between n/2 switching elements. ... Fronius International Gmbh

05/28/15 / #20150146463

Power supply for an inverter

To be able to maintain the power supply of an inverter which is supplied with power from a supply network even in the event of a power failure, it is proposed according to the invention that in the event of a power failure, the electric power for the power supply (2) of the inverter (1) is obtained from a throttle (7) of the inverter (1) at the output end via an auxiliary winding (13).. . ... Fronius International Gmbh

05/21/15 / #20150138842

Method for controlling a power source, and power source and process controller therefor

A method for controlling a power source is specified. The power source comprises a first converter (1) for converting an input voltage (ue) to an intermediate circuit voltage (uzk, uzk1), an intermediate circuit capacitor (2) and a second converter (3) for converting the intermediate circuit voltage (uzk, uzk1) to an output voltage (ua). ... Fronius International Gmbh

04/30/15 / #20150114943

Plug part and socket part for detachably connecting a pipe elbow of a water-cooled welding torch and connecting device

The invention relates to a plug part (21) for detachable connecting a torch neck (19) of a water-cooled welding torch (7) to a socket part (34) arranged on a hose package (20), having a cylindrical pipe element (22) with an axially running channel (23) for a welding wire (9) and a protective gas (5) and having at least two cooling channels (29, 30) for supplying and returning a cooling fluid, and a union nut (24) rotatably arranged on the pipe element (22), the union nut having an internal thread for connection to a mating external thread on the socket part (34), the invention further relating to such a socket part (34). In order to produce an optimal connection between the torch neck (19) and the hose package (20), a flange (25) having at least one receiving opening for receiving a pin-like element (36) of the socket part (34) is arranged on the pipe element (22) of the plug part (21) in order to fix at least one angular position of the torch neck (19).. ... Fronius International Gmbh

04/02/15 / #20150091604

Method for checking a separation point of a photovoltaic inverter, and photovoltaic inverter

The invention relates to a method for checking a photovoltaic inverter separator (14) between the photovoltaic inverter (1) and a power supply network (7), comprising multiple phases (l1, l2, l3) and a neutral conductor (n), wherein multiple switching contacts of the separator (14) are controlled by the photovoltaic inverter (1), and the invention also relates to a photovoltaic inverter (1). The aim of the invention is to allow a simple and quick check of the functionality of the separator (14). ... Fronius International Gmbh

03/26/15 / #20150083699

Welding device having two welding torches and control unit for starting the arc ignition process, and welding method for welding with two welding processes under an adapted starting process

A welding device has a central unit and a welding torch unit, which can be connected to the central unit. The central unit includes at least one welding current source for providing electric current needed to operate the welding torch unit and includes a control unit. ... Fronius International Gmbh

03/12/15 / #20150069041

Welding torch

A welding torch, in particular a handheld welding torch, for a melting welding wire, which is guided in a wire core arranged within a protective hose, fastens the protective hose and the welding core within a torch housing of the welding torch independently from one another. For minimizing stresses on the welding torch by the hose package, the protective hose is fastened rotatably and pivotably and the wire core is fastened rotatably to the torch housing.. ... Fronius International Gmbh

03/12/15 / #20150069040

Handheld welding torch for electric-arc welding

A handheld welding torch for electric-arc welding with a melting welding wire has a wire feed unit for conveying the welding wire along a conveying axis arranged within a torch housing with a handle region, the wire feed unit including a drive unit with a rotation axis arranged vertically with respect to the conveying axis of the welding wire, a drive roller with a rotation axis and a counter roller with a rotation axis, and having a torch push-button. The wire feed unit has a gear stage and the rotation axis of the drive unit is arranged aligning with the conveying axis of the welding wire.. ... Fronius International Gmbh

03/12/15 / #20150069031

Method for performing a welding process, welding device and wire coil for such a welding device

A method and a welding device for performing a welding process on a workpiece by a welding torch, uses a melting welding wire, which is arranged on a wire coil and may be supplied to the welding torch via a hose package, wherein different welding wires and different welding parameters are used depending on the geometry of the workpiece. A welding wire formed by the different interconnected welding wires in lengths depending on the geometry of the workpiece is arranged on the wire coil, so the welding process may be performed without interruptions using the different welding wires and the different welding parameters by supplying to the welding torch the welding wire formed by the different interconnected welding wires from the wire coil.. ... Fronius International Gmbh

03/05/15 / #20150060417

Method and device for generating a plasma jet

A method and a device for generating a plasma jet under atmospheric pressure for the surface treatment of workpieces has a supply line for the plasma-capable medium, and an apparatus for electrically exciting the plasma-capable medium by an electric arc periodically ignited between a cathode and an anode constructed as a nozzle. To achieve a highly effective plasma jet even at relatively low temperatures of the plasma jet, a heating apparatus for preheating the plasma-capable medium is arranged upstream of the apparatus for electrically exciting the plasma-capable medium.. ... Fronius International Gmbh

02/19/15 / #20150048065

Welding torch with a fixing element for the gas nozzle, said element being capable of extension; process control method for a welding system equipped with said welding torch; gas nozzle for said welding torch; and contact tube for said welding torch

The invention relates to a single- or multi-wire welding torch (6), more specifically to a laser-hybrid single- or multi-wire welding head provided with the welding torch (6) which can be connected to a welding device via a hose pack and consists of several parts such as a torch handle, a tubular welding torch housing, a contact housing, a contact tube for each welding wire (21a, 21b), a gas nozzle (2) etc., wherein an internal insert (28) for receiving the contact tube(s) (20a, 20b) and the gas nozzle (2) is mounted in an end area of the welding torch housing. A fixing element (30) made at least partially of a flexible material is placed on the internal insert (28) or on the housing (2) for producing as required an, in particular, gas-tight connection between said internal insert (28) and the gas nozzle (2) pushed thereon. ... Fronius International Gmbh

02/12/15 / #20150041447

Welding device having a touch screen

The invention relates to a welding device (1), comprising a connection (27) for a welding torch (7) for performing a welding process, a power source (2) for supplying the welding torch (7) with a welding current, a control device (4) and an input/output device (18), formed by a touch screen (21) and connected to said control device (4), for setting/displaying parameters, functions and the like. In order to make the welding device (1) as easy to operate as possible and allow parameters to be changed quickly on the touch screen (21), the control device (4) is designed for the sequential and circumferential setting/display of parameters in a main area (28) of the touch screen (21), wherein the settable parameter is displayed emphasised in the centre of the main area (28).. ... Fronius International Gmbh

02/05/15 / #20150034618

Welding apparatus comprising a welding assistance

A welding apparatus comprises a welding unit for welding a workpiece. The welding unit comprises a welding assistance system for generating control commands by evaluating a voice dialogue performed with a welder, and a weld control unit for setting weld control parameters in dependence upon the control commands. ... Fronius International Gmbh








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