IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0205864
(2005-08-17)
|
등록번호 |
US-7624908
(2009-12-16)
|
발명자
/ 주소 |
- Enyedy, Edward A.
- Justice, Kenneth L.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
15 |
초록
▼
Welding wire feeders are disclosed for providing welding wire and electrical power to a welding torch in a welding system, in which an input is provided including an input connector integrated into a switching device of the wire feeder or coupled thereto directly or through a short cable. The input
Welding wire feeders are disclosed for providing welding wire and electrical power to a welding torch in a welding system, in which an input is provided including an input connector integrated into a switching device of the wire feeder or coupled thereto directly or through a short cable. The input connector includes a cavity to receive wire from a power source cable with a clamping device being provided for selectively clamping the cable wire to the connector or releasing the wire therefrom using only simple tools.
대표청구항
▼
Having thus described the invention, the following is claimed: 1. A portable wire feeder for providing welding wire and electrical power to a welding torch, said wire feeder comprising: an output adapted to provide electrical power and welding wire to a torch cable; and an input comprising: a switc
Having thus described the invention, the following is claimed: 1. A portable wire feeder for providing welding wire and electrical power to a welding torch, said wire feeder comprising: an output adapted to provide electrical power and welding wire to a torch cable; and an input comprising: a switching device with first and second electrical terminals, said second electrical terminal being electrically coupled to said output, said switching device having a first operating condition in which said first and second electrical terminals are electrically coupled to one another and a second operating condition in which said first and second electrical terminals are electrically isolated from one another, and an input connector coupled directly to said switching device, said input connector comprising: a conductive structure having a first end, a second end coupled to said first electrical terminal of said switching device, and a cavity extending into said first end to receive solid or stranded wire of a power source cable, and a clamping device mountable to said conductive structure, said clamping device being movable between a first position in which said wire of said power source cable is clamped to said conductive structure and a second position in which said wire of said power source cable is removable from said cavity. 2. A portable wire feeder as defined in claim 1, wherein said input further comprises a thermal sensor mounted on said input connector. 3. A portable wire feeder as defined in claim 2, wherein said input further comprises a control circuit coupled to said thermal sensor, said switching device, and said output, said control circuit being operable to control the operating condition of said switching device according to a temperature signal from said thermal sensor and according to a trigger signal from a torch connected to said output. 4. A portable wire feeder as defined in claim 3, wherein said control circuit places said switching device in said first operating condition when a trigger of the torch is actuated and said temperature signal indicates said input connector is below a predetermined threshold temperature, and wherein said control circuit places said switching device in said second operating condition when said trigger is not actuated or when said input connector is above said threshold temperature. 5. A portable wire feeder as defined in claim 2, further comprising a housing enclosing said switching device, wherein said first end of said conductive structure is at least partially outside said housing. 6. A portable wire feeder as defined in claim 1, further comprising a housing enclosing said switching device, wherein said first end of said conductive structure is at least partially outside said housing. 7. A portable wire feeder as defined in claim 6, wherein said input connector is integral with said switching device. 8. A portable wire feeder as defined in claim 5, wherein said input connector is integral with said switching device. 9. A portable wire feeder as defined in claim 2, wherein said input connector is integral with said switching device. 10. A portable wire feeder as defined in claim 1, wherein said input connector is integral with said switching device. 11. A portable wire feeder as defined in claim 1, wherein said cavity is adapted to receive a ferrule located around an end of the power source cable, and wherein said clamping device clamps said ferrule to said conductive structure in said first position. 12. A portable wire feeder as defined in claim 1, further comprising a motorized wire feeding system including a motor and a feed roll driven by said motor to direct a welding wire from a wire supply to said output for provision of said welding wire to a welding operation through the torch cable. 13. A portable wire feeder as defined in claim 1, wherein said input connector includes a threaded passageway extending between an outer surface of said conductive structure and said cavity and said clamping device is a threaded screw mountable in said threaded passageway and movable between said first position in which said screw clamps said wire to said conductive structure and said second position in which said wire is removable from said cavity. 14. A portable wire feeder as defined in claim 1, wherein said switching device is a contactor. 15. A portable wire feeder as defined in claim 1, wherein said switching device comprises a semiconductor type switching device. 16. A portable wire feeder for providing welding wire and electrical power to a welding torch, said wire feeder comprising: a wire feeding system adapted to direct welding wire from a wire supply to a torch cable; an output adapted to provide electrical power to the torch cable; and an input comprising a switching device, an input connector, and a clamping device, said switching device having first and second electrical terminals, said second electrical terminal being electrically coupled to said output, said switching device having a first operating condition in which said first and second electrical terminals are electrically coupled to one another and a second operating condition in which said first and second electrical terminals are electrically isolated from one another, said input connector comprising a conductive structure having a first end, a second end coupled to said first electrical terminal of said switching device, and a cavity extending into said first end to receive a power source cable wire, and said clamping device being mountable to said conductive structure and movable between a first position in which said wire of said power source cable is clamped to said conductive structure and a second position in which said wire of said power source cable is removable from said cavity. 17. A portable wire feeder as defined in claim 16, wherein said input further comprises a thermal sensor mounted on said input connector. 18. A portable wire feeder as defined in claim 16, further comprising a housing enclosing said switching device, and a short cable connecting said second end of said conductive structure to said first electrical terminal of said switching device, wherein said conductive structure is outside said housing. 19. A portable wire feeder as defined in claim 17, wherein said input further comprises a control circuit coupled to said thermal sensor, said switching device, and said output, said control circuit being operable to control the operating condition of said switching device according to a temperature signal from said thermal sensor and according to a trigger signal from a torch connected to said output. 20. A portable wire feeder as defined in claim 19, wherein said control circuit places said switching device in said first operating condition when a trigger of the torch is actuated and said temperature signal indicates said input connector is below a predetermined threshold temperature, and wherein said control circuit places said switching device in said second operating condition when said trigger is not actuated or when said input connector is above said threshold temperature. 21. A portable wire feeder as defined in claim 16, wherein said switching device comprises a semiconductor type switching device. 22. A portable wire feeder for providing welding wire and electrical power to a welding torch, said wire feeder comprising: an output adapted to provide electrical power and welding wire to a torch cable; a switching device with first and second electrical terminals, said second electrical terminal being electrically coupled to said output, said switching device having a first operating condition in which said first and second electrical terminals are electrically coupled to one another and a second operating condition in which said first and second electrical terminals are electrically isolated from one another, wherein said first electrical terminal comprising a conductive structure having a cavity extending therein to receive wire of a power source cable; and a clamping device mountable to said conductive structure and movable between a first position in which said wire of said power source cable is clamped to said conductive structure and a second position in which said wire of said power source cable is removable from said cavity. 23. The wire feeder of claim 22, wherein said conductive structure includes a threaded passageway extended between an outer surface of said conductive structure and said cavity and wherein said clamping device comprises a threaded structure rotatably mounted in said threaded passageway and movable between said first position in which said clamping device clamps said wire to said conductive structure and said second position in which said wire is removable from said cavity, said clamping device further comprising at least one tab attached to said threaded structure and extending outwardly therefrom to allow manual rotation of said threaded structure.
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