Apparatus and method for wireless power transfer in furniture
First Claim
1. An apparatus for wireless power transfer comprising:
- an article of furniture having an internal frame and an upholstery covering;
at least one transmitting resonator carried by said frame and disposed at least partially beneath said upholstery covering;
the at least one transmitting resonator being tuned for resonance at a predetermined frequency;
a high frequency power source carried by said frame and electrically coupled to said at least one transmitting resonator, the high frequency power source being further adapted for coupling to a source of electric power external to the article of furniture;
the high frequency power source and the at least one transmitting resonator producing in the near field adjacent the at least one transmitting resonator a magnetic field that couples and transfers power at the predetermined frequency, andat least one compound passive resonator carried by said frame and disposed at least partially beneath said upholstery covering;
the compound passive resonator having a portion thereof being disposed in the near field adjacent the at least one transmitting resonator and being operative to extend the magnetic field produced by the at least one transmitting resonator;
the compound passive resonator comprising at least two coils electrically connected by a conductive component of said frame to define an antenna having no direct current flow path between the at least two coils.
1 Assignment
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Accused Products
Abstract
An article of furniture having an internal frame and an upholstery covering is provided with at least one transmitting resonator carried by said frame and disposed at least partially beneath said upholstery covering. The resonator is tuned for resonance at a predetermined frequency and driven by a high frequency power source also carried by said frame. The high frequency power source is adapted for coupling to a source of electric power external to the article of furniture, such as to an AC outlet. The high frequency power source and transmitting resonator producing in the near field adjacent the at least one transmitting resonator a magnetic field that couples and transfers power at the predetermined frequency. A complementary receiving resonator or a compound passive resonator having two or more coils is coupled to the load to be powered and power is transferred by magnetic induction when the receiving resonator is positioned within the near field of the transmitting resonator.
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Citations
29 Claims
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1. An apparatus for wireless power transfer comprising:
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an article of furniture having an internal frame and an upholstery covering; at least one transmitting resonator carried by said frame and disposed at least partially beneath said upholstery covering; the at least one transmitting resonator being tuned for resonance at a predetermined frequency; a high frequency power source carried by said frame and electrically coupled to said at least one transmitting resonator, the high frequency power source being further adapted for coupling to a source of electric power external to the article of furniture; the high frequency power source and the at least one transmitting resonator producing in the near field adjacent the at least one transmitting resonator a magnetic field that couples and transfers power at the predetermined frequency, and at least one compound passive resonator carried by said frame and disposed at least partially beneath said upholstery covering;
the compound passive resonator having a portion thereof being disposed in the near field adjacent the at least one transmitting resonator and being operative to extend the magnetic field produced by the at least one transmitting resonator;the compound passive resonator comprising at least two coils electrically connected by a conductive component of said frame to define an antenna having no direct current flow path between the at least two coils. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for outfitting an article of furniture for wireless power transfer comprising:
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in an article of furniture having an internal frame and an upholstery covering, providing at least one transmitting resonator carried by said frame and disposed at least partially beneath said upholstery covering; tuning the at least one transmitting resonator for resonance at a predetermined frequency; supporting a high frequency power source by said frame and electrically coupling said high frequency power source to said at least one transmitting resonator, configuring the high frequency power source to be coupled to a source of electric power external to the article of furniture; configuring the high frequency power source and the at least one transmitting resonator to produce in the near field adjacent the at least one transmitting resonator a magnetic field that couples and transfers power at the predetermined frequency when coupled to a source of electrical power external to the article of furniture, and further providing at least one compound passive resonator carried by said frame and disposed at least partially beneath said upholstery covering; the compound passive resonator having a portion thereof being disposed in the near field adjacent the at least one transmitting resonator and being operative to extend the magnetic field produced by the at least one transmitting resonator; the compound passive resonator comprising at least two coils electrically connected by a conductive component of said frame to define an antenna having no direct current flow path between the at least two coils. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 29)
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22. An article of furniture, comprising:
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a frame and an upholstery covering supported by said frame; at least one transmitting resonator carried by said frame and disposed at least partially beneath said upholstery covering; the at least one transmitting resonator being tuned for resonance at a predetermined frequency; a high frequency power source carried by said frame and electrically coupled to said at least one transmitting resonator, the high frequency power source being further adapted for coupling to a source of electric power external to the article of furniture; the high frequency power source and the at least one transmitting resonator producing in the near field adjacent the at least one transmitting resonator a magnetic field that couples and transfers power at the predetermined frequency at least one compound passive resonator carried by said frame and disposed at least partially beneath said upholstery covering; the compound passive resonator having a portion thereof being disposed in the near field adjacent the at least one transmitting resonator and being operative to extend the magnetic field produced by the at least one transmitting resonator; the compound passive resonator comprising at least two coils electrically connected by a conductive component of said frame to define an antenna having no direct current flow path between the at least two coils. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification