Transmission Of Power Supply For Robot Applications Between A First Member And A Second Member Arranged Rotatable Relative To One Another
First Claim
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1. A process media transfer unit for an industrial robot, comprising:
- a first part for attachment to a first robot part, first part comprising a first electric circuit including a first aircored coil;
a second part for attachment to a second robot part, the second part comprising a second electric circuit including a second aircored coil;
an airgap formed between the first aircored coil and the second aircored coil, the first and second part being coaxially arranged about a common axis and separated by the airgap to provide an endless rotation relative to each other; and
,a magnetic circuit for interaction with the first electric circuit and the second electric circuits across the airgap, whereby the first electric circuit is arranged to receive an electric current to generate a magnetic flux in the magnetic circuit and the second electric circuit is arranged to receive the magnetic flux of the magnetic circuit and supply an electric current to the second robot part.
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Abstract
A process media transfer unit for an industrial robot including a first part for attachment to a first robot part, and a second part for attachment to a second robot part. The first and second parts being coaxially arranged about a common axis and separated by an airgap to provide an endless rotation relative to each other.
236 Citations
17 Claims
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1. A process media transfer unit for an industrial robot, comprising:
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a first part for attachment to a first robot part, first part comprising a first electric circuit including a first aircored coil; a second part for attachment to a second robot part, the second part comprising a second electric circuit including a second aircored coil; an airgap formed between the first aircored coil and the second aircored coil, the first and second part being coaxially arranged about a common axis and separated by the airgap to provide an endless rotation relative to each other; and
,a magnetic circuit for interaction with the first electric circuit and the second electric circuits across the airgap, whereby the first electric circuit is arranged to receive an electric current to generate a magnetic flux in the magnetic circuit and the second electric circuit is arranged to receive the magnetic flux of the magnetic circuit and supply an electric current to the second robot part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16)
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12. A method for transferring electric power between a first part of a process media transfer unit attached to a first robot part and a second part of a process media transfer unit attached to a second robot part and separated from the first part by an airgap, the method comprising:
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supplying from the first robot part a first high frequency ac current, supplying the second high frequency ac current to a first aircored coil in the first part, forming by the first aircored coil a magnetic flux in the airgap, receiving by a second aircored coil in the second part the magnetic flux, and transforming by the second aircored coil the magnetic flux into a second high frequency ac current for electric power supply to the second robot part. - View Dependent Claims (13, 14, 15)
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17. An industrial robot comprising:
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a first robot part, a second robot part, and a process media unit comprising a first part for attachment to a first robot part, first part comprising a first electric circuit including a first aircored coil;
a second part for attachment to a second robot part, the second part comprising a second electric circuit including a second aircored coil;
an airgap formed between the first aircored coil and the second aircored coil, the first and second part being coaxially arranged about a common axis and separated by the airgap to provide an endless rotation relative to each other; and
a magnetic circuit for interaction with the first electric circuit and the second electric circuits across the airgap, whereby the first electric circuit is arranged to receive an electric current to generate a magnetic flux in the magnetic circuit and the second electric circuit is arranged to receive the magnetic flux of the magnetic circuit and supply an electric current to the second robot part.
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Specification