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

A welding device and battery voltage technology, which is applied in the direction of battery circuit devices, circuit devices, output power conversion devices, etc., can solve the problems of reduced efficiency and increased total loss of welding devices, etc.

Active Publication Date: 2017-11-21
FRONIUS INTERNATIONAL GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the provision of a boost converter results in increased overall losses in a battery-powered welding device since the buck converter is predominantly active during normal welding operation, thus resulting in reduced efficiency

Method used

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

Examples

Experimental program
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Embodiment Construction

[0033] figure 1A block diagram of a battery-operated welding device 1 is shown, which has a battery 2 which can be formed, for example, from a lithium iron phosphate battery with a particularly high power density. The battery 2 can also be provided to be replaceable, if desired. Battery 2 supplies battery voltage U in and battery current I in . In the welding controller 3, the battery voltage U supplied by the battery 2 in and battery current I in is controlled to supply a corresponding welding current I to the welding torch 11 out and the welding voltage U supplied to the welding torch 11 out . The output of the welding controller 3 is connected to the welding torch 11 and the workpiece 17 to be welded. Expected welding current I set and the desired welding voltage U set For example, it is set by means of the input device 16 and transmitted to the control device 15 . The control device 15 supplies corresponding control signals for the components comprised in the we...

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PUM

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Abstract

The invention relates to a method for controlling a battery-powered welding device (1) and a battery-powered welding device (1) comprising a battery voltage (Uin) and a battery current ( A battery (2) of Iin), and includes a welding controller (3) for controlling the welding current (Iout) and welding voltage (Uout) supplied to the welding torch (11), the welding controller (3) comprising at least A boost converter (4) with one switch (5) and a buck converter (6) with at least one switch (7). In order to achieve high levels of efficiency and dynamics as well as optimum welding characteristics, a switch (8) is provided for bypassing said boost converter (4), which is connected to a switch controller (9) , the switching controller (9) is designed such that if the intermediate circuit voltage (UZW) between the boost controller (4) and the buck controller (6) is less than or equal to the battery voltage (Uin) The switch (8) is then closed, and the switch (8) is opened if the boost converter (4) is activated.

Description

technical field [0001] The invention relates to a method for controlling a battery-powered welding device, wherein the battery voltage and the battery current supplied by the battery are controlled to the welding current and the welding voltage supplied to the welding torch by a welding controller having a A boost converter with at least one switch and a buck converter with at least one switch. [0002] Furthermore, the invention relates to a battery powered welding device comprising a battery having a battery voltage and a battery current and comprising a welding controller for controlling the welding current and the welding voltage supplied to the welding torch, the The welding controller includes a boost converter with at least one switch and a buck converter with at least one switch. Background technique [0003] The use of portable battery powered welding devices is particularly advantageous or critical for welding in places where welding is to be performed which is pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158H02J7/00B23K9/09B23K9/10
CPCB23K9/1075G05F1/59H02M3/1582H02J7/0063B23K9/1081H02J7/007182B23K9/1043
Inventor 安德烈亚斯·施塔尔岑格鲁贝尔亚历山大·施派格纳
Owner FRONIUS INTERNATIONAL GMBH