POWER SUPPLY SYSTEM AND FIXED AND MOVABLE BODY THEREFOR
First Claim
1. A power supply system for supplying power from a fixed body placed in a power-supplying region, via a movable body placed in a power-consuming region, to a predetermined load,wherein the fixed body is configured to be placed at a position in the neighborhood of the interface between the power-supplying region and power-consuming region, the fixed body comprises:
- a first power-transmitting electrode and second power-transmitting electrode to which AC power is supplied; and
an AC power supply to supply power to the first power-transmitting electrode and second power-transmitting electrode,wherein the movable body comprises;
a first power-receiving electrode and second power-receiving electrode to be placed in a manner opposed to and not contacting the first power-transmitting electrode and second power-transmitting electrode with the interface interposed therebetween;
a first capacitor and first coil connected to each other in parallel between the first power-receiving electrode and second power-receiving electrode,wherein, while a first coupling capacitor is formed when one of the first power-receiving electrode and second power-receiving electrode is placed in a manner opposed to the first power-transmitting electrode, a second coupling capacitor is formed when the other one of the first power-receiving electrode and second power-receiving electrode is placed in a manner opposed to the second power-transmitting electrode,wherein the AC power supply transmits power to the load via the first and second coupling capacitors under a condition that causes parallel resonance between the first capacitor and first coil.
3 Assignments
0 Petitions
Accused Products
Abstract
Provided is a power supply system which makes it possible to stably supply power regardless of changes in placement of electrodes. The power supply system for supplying power to a load (24). The fixed body (10) includes: a first power-transmitting electrode (12) and second power-transmitting electrode (13); and an AC power supply (11) to supply AC power to the first power-transmitting electrode (12) and second power-transmitting electrode (13). The movable body (20) includes: a first power-receiving electrode (21a) and second power-receiving electrode (21b) to form a first coupling capacitor (30) and a second coupling capacitor (31), respectively, by being placed in a manner opposed to and not contacting corresponding ones of the first power-transmitting electrode (12) and second power-transmitting electrode (13) while facing one side of an interface, the one side not being faced by these power-transmitting electrodes, and a first capacitor (22a) and first coil (22b) connected to one another in parallel between the first power-receiving electrode (21a) and second power-receiving electrode (21b). The AC power supply (11) transmits power to the load (24) via the first and second coupling capacitors under a condition that causes parallel resonance between the first capacitor (22a) and first coil (22b).
24 Citations
10 Claims
-
1. A power supply system for supplying power from a fixed body placed in a power-supplying region, via a movable body placed in a power-consuming region, to a predetermined load,
wherein the fixed body is configured to be placed at a position in the neighborhood of the interface between the power-supplying region and power-consuming region, the fixed body comprises: -
a first power-transmitting electrode and second power-transmitting electrode to which AC power is supplied; and an AC power supply to supply power to the first power-transmitting electrode and second power-transmitting electrode, wherein the movable body comprises; a first power-receiving electrode and second power-receiving electrode to be placed in a manner opposed to and not contacting the first power-transmitting electrode and second power-transmitting electrode with the interface interposed therebetween; a first capacitor and first coil connected to each other in parallel between the first power-receiving electrode and second power-receiving electrode, wherein, while a first coupling capacitor is formed when one of the first power-receiving electrode and second power-receiving electrode is placed in a manner opposed to the first power-transmitting electrode, a second coupling capacitor is formed when the other one of the first power-receiving electrode and second power-receiving electrode is placed in a manner opposed to the second power-transmitting electrode, wherein the AC power supply transmits power to the load via the first and second coupling capacitors under a condition that causes parallel resonance between the first capacitor and first coil. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A movable body to be placed in a power-consuming region and to supply power to a predetermined load, the power having been supplied from a fixed body placed in a power-supplying region, comprising:
-
a first power-receiving electrode and second power-receiving electrode, the first power-receiving electrode and second power-receiving electrode being a set of power-receiving electrodes to be placed in a manner opposed to and not contacting a first power-transmitting electrode or second power-transmitting electrode and with the interface, of the power-supplying region and power-consuming region, having the pair of power-receiving electrodes on one side and the first power-transmitting electrode and second power-transmitting electrode on the other side, the first power-transmitting electrode and second power-transmitting electrode being those arranged in the fixed body and to which AC power is supplied, wherein, while a first coupling capacitor is formed when one of the paired power-receiving electrodes is placed in a manner opposed to the first power-transmitting electrode, a second coupling capacitor is formed when the other one of the paired power-receiving electrodes is placed in a manner opposed to the second power-transmitting electrode; and a first capacitor and first coil connected to each other in parallel between the first and second power-receiving electrodes, wherein power is transmitted to the load via the first and second coupling capacitors under a condition that causes parallel resonance between the first capacitor and first coil.
-
-
9. A fixed body placed in a power-supplying region and configured to supply power to a predetermined load via a movable body placed in a power-consuming region, comprising:
-
a plurality of first power-transmitting electrodes and plurality of second power-transmitting electrodes, which form capacitors with at least one set of power-receiving electrodes arranged in the movable body when being placed in a manner opposed to and not contacting this pair of power-receiving electrodes and with the interface, of the power-supplying region and power-consuming region, having the pluralities of first power-transmitting electrodes and second power-transmitting electrodes on one side and the paired power-receiving electrodes on the other; and an AC power supply to supply power to the first and second power-transmitting electrodes, wherein the AC power supply transmits power to the load via the first and second coupling capacitors under a condition that causes parallel resonance between a first capacitor and first coil, which are connected to each other in parallel between the first and second power-receiving electrodes in the movable body. - View Dependent Claims (10)
-
Specification