Mobile-terminal charging device and vehicle equipped with same
First Claim
Patent Images
1. A mobile-terminal charging device comprising:
- a support plate whose front surface side is used as a mobile terminal placement portion;
a charging coil that is movably disposed in a state of opposing the support plate on a rear surface side of the support plate;
a driver that can move the charging coil on the rear surface side of the support plate;
a controller that is connected to the charging coil and the driver;
a memory that is connected to the controller; and
a plurality of foreign object detection coils that are provided on the support plate and are connected to the controller,wherein the memory stores a reference resonance frequency or a reference resonance voltage of each of the plurality of foreign object detection coils for each location where the charging coil is present,wherein the controller performs a safety operation during non-conduction of the charging coil in a case where a resonance frequency detected by one of the plurality of foreign object detection coils corresponding to a location where the charging coil is present is higher than the reference resonance frequency stored in the memory, or a resonance voltage detected by one of the plurality of foreign object detection coils corresponding to a location where the charging coil is present is lower than the reference resonance voltage stored in the memory,wherein a first detection coil and a second detection coil, which is disposed inward of the first detection coil and has a diameter smaller than a diameter of the first detection coil, are provided in the charging coil, and the first detection coil and the second detection coil are connected to the controller, andwherein, in a state in which the charging coil is in a conduction state, the controller compares a ratio between a first voltage (V1) detected by the first detection coil and a second voltage (V2) detected by the second detection coil with a set value, and performs the safety operation based on a comparison result.
2 Assignments
0 Petitions
Accused Products
Abstract
In a mobile-terminal charging device, a controller performs a safety operation in a case where a resonance frequency detected by a foreign object detection coil corresponding to a location where a charging coil is present is higher than a reference resonance frequency stored in a memory, or a resonance voltage detected by a foreign object detection coil corresponding to a location where the charging coil is present is lower than a reference resonance voltage stored in the memory.
11 Citations
12 Claims
-
1. A mobile-terminal charging device comprising:
-
a support plate whose front surface side is used as a mobile terminal placement portion; a charging coil that is movably disposed in a state of opposing the support plate on a rear surface side of the support plate; a driver that can move the charging coil on the rear surface side of the support plate; a controller that is connected to the charging coil and the driver; a memory that is connected to the controller; and a plurality of foreign object detection coils that are provided on the support plate and are connected to the controller, wherein the memory stores a reference resonance frequency or a reference resonance voltage of each of the plurality of foreign object detection coils for each location where the charging coil is present, wherein the controller performs a safety operation during non-conduction of the charging coil in a case where a resonance frequency detected by one of the plurality of foreign object detection coils corresponding to a location where the charging coil is present is higher than the reference resonance frequency stored in the memory, or a resonance voltage detected by one of the plurality of foreign object detection coils corresponding to a location where the charging coil is present is lower than the reference resonance voltage stored in the memory, wherein a first detection coil and a second detection coil, which is disposed inward of the first detection coil and has a diameter smaller than a diameter of the first detection coil, are provided in the charging coil, and the first detection coil and the second detection coil are connected to the controller, and wherein, in a state in which the charging coil is in a conduction state, the controller compares a ratio between a first voltage (V1) detected by the first detection coil and a second voltage (V2) detected by the second detection coil with a set value, and performs the safety operation based on a comparison result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification