Non-contact feeder system
First Claim
1. A non-contact feeder system to supply an induced current to an electrical load comprising:
- at least three feeding cables arranged substantially parallel to one another along a moving direction of the electrical load;
a plurality of AC power supplies to supply AC currents to the feeding cables;
pick-up parts to supply an induced current induced from a magnetic field formed by a corresponding one of the AC currents flowing through corresponding ones of the feeding cables to the electrical load and to be movable along the corresponding one of the feeding cables without contacting the feeding cables as the electrical load moves; and
a controller to control the plurality of the AC power supplies, so that phases of the AC currents supplied from each of the AC power supplies are the same, and directions of the AC currents flowing through the feeding cables positioned adjacent to one another are reverse with respect to one another.
1 Assignment
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Accused Products
Abstract
A non-contact feeder system to supply an induced current to an electrical load includes at least three feeding cables arranged approximately parallel with one another along a moving direction of the electrical load; a plurality of AC power supplies to supply AC currents to the feeding cables; pick-up parts to supply an induced current, induced from a magnetic field formed by the AC current flowing through each of the feeding cables, to the electrical load and to be movable along the feeding cables without contacting the feeding cables as the electrical load moves; and a controller to control the plurality of AC power supplies, so that phases of the AC currents supplied from the AC power supplies are the same, and directions of the AC currents flowing through the feeding cables positioned adjacent to one another are reverse with respect to one another. Thus, the space to mount components in the non-contact feeder system is decreased and the induced current is improved.
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Citations
25 Claims
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1. A non-contact feeder system to supply an induced current to an electrical load comprising:
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at least three feeding cables arranged substantially parallel to one another along a moving direction of the electrical load; a plurality of AC power supplies to supply AC currents to the feeding cables; pick-up parts to supply an induced current induced from a magnetic field formed by a corresponding one of the AC currents flowing through corresponding ones of the feeding cables to the electrical load and to be movable along the corresponding one of the feeding cables without contacting the feeding cables as the electrical load moves; and a controller to control the plurality of the AC power supplies, so that phases of the AC currents supplied from each of the AC power supplies are the same, and directions of the AC currents flowing through the feeding cables positioned adjacent to one another are reverse with respect to one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A non-contact feeder system to supply an induced current to an electrical load, comprising:
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at least three feeding cables arranged substantially parallel to one another along a moving direction of the electrical load; a plurality of AC power supplies to supply an AC current to the feeding cables; and
pick-up parts to supply an induced current induced from a magnetic field formed by the AC current flowing through each of the feeding cables to the electrical load and to be movable along each of the feeding cables without contacting each of the feeding cables as the electrical load moves,wherein pairs of the feeding cables are electrically connected in series and are arranged so that directions of AC currents passing through each of the feeding cables disposed adjacent to one another are reverse with respect to one another. - View Dependent Claims (11, 12, 13, 14)
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15. A non-contact feeder system to supply an induced current to an electrical load, comprising:
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first, second, and third feeding cables disposed in a direction parallel to a moving direction of the electrical load; and first, second, and third pick-up cores disposed to generate the induced current from the first, second, and third feeding cables, respectively, wherein the first pickup core comprises first and second sides disposed to contact sides of the second and third pick-up cores, respectively. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A non contact feeder system to supply an induced current to an electrical load, the system comprising:
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at least two pairs of adjacent feeding cables arranged substantially parallel to one another along a moving direction of the electrical load and having AC currents conducted therethrough; one or more pick up parts to supply an induced current induced from a magnetic field formed by the AC currents conducted through corresponding ones of the at least two pairs of adjacent feeding cables to the electrical load and to be movable along the corresponding ones of the at least two pairs of adjacent feeding cables without contacting the at least two pairs of adjacent feeding cables as the electrical load moves; and a controller to control the AC currents conducted through the at least two pairs of adjacent feeding cables such that magnetic fields produced by two feeding cables in each pair constructively interfere with each other.
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Specification