Electric power transmitting device with inductive coupling
First Claim
1. An electric power transmitting device comprising:
- a first coil;
a second coil which can be combined with said first coil to provide an inductive coupling therebetween;
means for supplying a current which is variable in magnitude with time to said first coil to induce an electric current across said second coil through said inductive coupling;
one of said first and second coils having a bent portion extending along the axial direction of one of the coils;
the other of said first and second coils being insertable into said one of the coils through said bent portion; and
the arrangement being such that said first and second coils can be disposed in substantially one plane, and said other of the coils can be moved into and out of said one of the coils in the axial direction of said one of the coils and in a direction transverse to said axial direction.
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Accused Products
Abstract
An electric power transmitting device transmits electric energy from one coil to another coil through an inductive coupling therebetween. One of the coils has an end bent in the axial direction of the coil. When the other coil is to be inserted into said one coil, it can be inserted in not only the axial direction of said one coil, but also a direction transverse to the axial direction through the bent end of the coil. Said one of the coils is typically housed in a holder, and the other coil in the grip of a gun-shaped, hand-held bar-code scanner. When the grip is inserted into a groove defined in the holder, the coils are magnetically coupled to each other, thus providing an inductive coupling. The bar-code scanner can easily be placed on and removed from the holder.
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Citations
11 Claims
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1. An electric power transmitting device comprising:
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a first coil; a second coil which can be combined with said first coil to provide an inductive coupling therebetween; means for supplying a current which is variable in magnitude with time to said first coil to induce an electric current across said second coil through said inductive coupling; one of said first and second coils having a bent portion extending along the axial direction of one of the coils; the other of said first and second coils being insertable into said one of the coils through said bent portion; and the arrangement being such that said first and second coils can be disposed in substantially one plane, and said other of the coils can be moved into and out of said one of the coils in the axial direction of said one of the coils and in a direction transverse to said axial direction. - View Dependent Claims (2, 3, 4)
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5. A manually operable device and holder combination comprising:
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a manually operable device; a first coil disposed in said manually operable device; a secondary battery disposed in said manually operable device and electrically chargeable by an electric current induced across said first coil; a holder for holding said manually operable device; means defining a groove in said holder, said manually operable device being insertable into said groove in two substantially perpendicular directions; a second coil disposed in said holder along said groove, said second coil having a bent portion extending transversely around said groove, said bent portion being bent in one of said two substantially perpendicular directions; and an electric power transmitter for supplying said second coil with an electric current which varies in magnitude with time. - View Dependent Claims (6, 7)
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8. A hand-held bar-code scanner and holder combination comprising:
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a gun-shaped hand-held bar-code scanner having a grip; a first coil disposed in said grip of the bar-code scanner; a secondary battery disposed in said bar-code scanner and electrically chargeable by an electric current induced across said first coil; a holder having a groove therein for holding said grip of the bar-code scanner, said grip of the bar-code scanner being insertable into said groove in at least two substantially perpendicular directions; a second coil disposed in said holder along said groove, said second coil having a bent portion extending transversely around said groove, said first and second coils being positioned in substantially one plane when said grip is received in said groove; and an electric power transmitter for supplying said second coil with an electric current which varies in magnitude with time. - View Dependent Claims (9, 10, 11)
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Specification