Battery powered welding system

Patent metadata

Field	Value
Publication number	US-11897064-B2
Application number	US-202016990509-A
Country	US
Kind code	B2
Filing date	Aug 11, 2020
Priority date	Jul 9, 2010
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

A battery powered welding system is provided. In one welding system a battery powered welder includes control circuitry configured to control a welding power output converted from power from an external battery power source. The battery powered welder also includes a wire drive assembly coupled to the control circuitry and configured to feed a welding wire using power from the external battery power source. The battery powered welder includes a case integrally supporting and enclosing the control circuitry and the wire drive assembly. The case is not configured to enclose the external battery power source.

First claim

The invention claimed is:

1. A battery powered welder comprising:
control circuitry configured to control a welding power output converted from power from an external battery power source;
a wire drive assembly comprising a wire drive motor and one or more wire feed roller, the wire drive assembly communicably coupled to the control circuitry and configured to feed a welding wire using power from the external battery power source; and
a wire feed speed control circuitry comprising a pulse width modulation wire drive motor control circuit configured to generate one or more signals to regulate a voltage in a wire drive motor based on a reference wire feed speed level selected by the operator.

2. The welder of claim 1 , wherein the case comprises a storage area configured to store a MIG torch, at least one weld cable, and at least one battery cable.

3. The welder of claim 1 , wherein the control circuitry comprises a pulse width modulated weld output controller configured to control the welding power output.

4. The welder of claim 1 , wherein the control circuitry comprises a pulse width modulated wire drive controller configured to control the wire drive assembly.

5. The welder of claim 1 , wherein the control circuitry comprises a fan controller configured to control the operation of a cooling fan.

6. The welder of claim 1 , comprising a cooling fan configured to aid in dissipating heat generated by the control circuitry.

7. The welder of claim 1 , comprising a gas valve configured to control the flow of gas to a welding torch.

8. A battery powered welding system comprising:
a MIG torch for performing a welding operation;
control circuitry configured to control a welding power output converted from power from an external battery power source;
a wire feed speed control circuitry comprising a pulse width modulation wire drive motor control circuit configured to generate one or more signals to regulate a voltage in a wire drive motor based on a reference wire feed speed level selected by the operator; and
a wire drive assembly coupled to the wire drive motor control circuit and to the control circuitry and configured to feed a welding wire using power from the external battery power source.

9. The system of claim 8 , comprising a work cable configured to be coupled to the case.

10. The system of claim 8 , comprising a weld cable configured to couple the MIG torch to the case.

11. The system of claim 8 , comprising a battery cable configured to couple the control circuitry to one or more batteries of the external battery power source.

12. The system of claim 8 , wherein the case comprises a louver configured to dissipate heat produced by the control circuitry.

13. The system of claim 8 , wherein the case comprises a user interface configured to control the operation of the welding system.

14. The system of claim 8 , wherein the control circuitry comprises a pulse width modulated weld output controller configured to control the welding power output.

15. An externally powered welder comprising:
a welding power converter configured to receive power from an external power source;
a weld output controller configured to control welding power output of the welding power converter; and
a wire drive controller configured to control a wire drive assembly; and
a polarity change-over device configured to reverse a polarity of the welding output power between a work clamp cable and the welding torch.

16. The welder of claim 15 , comprising a fan controller configured to control the operation of a cooling fan.

17. The welder of claim 15 , comprising a gas valve controller configured to control the operation of a gas valve.

18. The welder of claim 15 , wherein the weld output controller is configured to receive a control signal from a weld output control device.

19. The welder of claim 15 , wherein the wire drive controller is configured to receive a control signal from a wire feed speed control device.

20. The welder of claim 15 , comprising a switch detection circuit configured to detect when a welding torch trigger is actuated.

Assignees

• Illinois Tool Works

Inventors

• Rozmarynowski Scott Ryan
• Krisher Caleb Robert
• Sickels Darrell Lee

Classifications

• B23K9/327 Primary

  Means for transporting supplies · CPC title