Wireless power supply apparatus for an electric toothbrush

1 . A power supply apparatus comprising a first power coupler on a first housing portion, a second power coupler inside a second housing portion, and electronic circuitry interconnecting the first power coupler and the second power coupler;

wherein the first power coupler is a power input coupler which is configured for moving in a first direction in order to enter into physical and electrical connection with a power outlet to receive input power;

wherein the second housing portion comprises a platform which is configured for supporting an electrical load and an internal compartment in which the second power coupler is housed, the platform having a platform surface which is parallel to the first direction and extends away from the first power coupler, the second power coupler being a power output coupler;

wherein the electronic circuitry is configured for converting the input power into output power which is suitable for wireless transfer across the second housing portion;

wherein the first housing portion is intermediate the second housing portion and the first power coupler;

wherein the first power coupler is configured to cooperate with the power outlet so that the second housing is elevated in a cantilever configuration above a base surface when the power input coupler is attached to a wall-mounted power outlet;

wherein the first housing portion comprises a front panel having a front panel surface which is adjacent the platform surface and wherein the front panel surface projects for a height above the platform surface when the apparatus is resting on a horizontal surface and with the bottom surface in abutment with the horizontal surface and supporting the weight of the apparatus; and

wherein the apparatus comprises a load retention structure which protrudes orthogonally from the platform surface, and wherein the load retention structure is oppositely facing the front panel surface.

2 . The apparatus according to claim 1 , wherein the second housing portion comprises a bottom surface, and wherein the platform has a platform surface which is configured to support the load such that the platform surface is horizontal when the bottom surface is resting on a horizontal surface to support the weight of the apparatus.

3 . The apparatus according to claim 1 , wherein the first power coupler is configured to approach the power outlet in the first direction and the platform surface extends in the second direction to project away from the first housing portion, the second direction being opposite to the first direction.

4 . The apparatus according to claim 1 , wherein the power input coupler has a height and the height of the panel surface which projects above the platform surface is a fraction of the height of the power input coupler; and/or wherein the front panel surface and the platform surface is integrally formed.

5 . The apparatus according to claim 1 , wherein the load retention structure is made of a magnetic permeable material and surrounds the power output coupler.

6 . The apparatus according to claim 5 , wherein the power output coupler is a magnetic limb of a transformer.

7 . The apparatus according to claim 1 , wherein the front panel surface and the platform surface is integrally formed.

8 . The apparatus according to claim 1 , wherein the second housing portion comprises an upper panel which defines the platform surface and a lower panel which defines a bottom surface, wherein the upper panel and the lower panel cooperate to define a circuitry compartment inside which the electronic circuitry is housed, and wherein a plurality of conductors extends through the front panel to interconnect the electronic circuitry and the power input coupler.

9 . The apparatus according to claim 1 , wherein the first housing portion comprises a back panel which cooperate with the front panel to define the first housing portion, and wherein a power coupler receptacle is formed on the back panel for detachable reception of a detachable power input coupler.

10 . The apparatus according to claim 9 , wherein a plurality of resilient electrical contacts is mounted on the front panel, and wherein the plurality of resilient electrical contacts projects through the back panel and is configured for making electrical contact with the detachable power coupler.

11 . The apparatus according to claim 1 , wherein the first housing portion comprises a peripheral wall and the second housing portion comprises a peripheral wall, and wherein the peripheral wall of the first housing portion and the peripheral wall of the second housing portion are integrally formed.

12 . The apparatus according to claim 1 , wherein the power output coupler and the platform surface cooperate to define a docking structure for holding a load.

13 . The apparatus according to claim 1 , wherein the load has an indented housing and the power output coupler is configured to engage with the indented housing to retain the load.

14 . The apparatus according to claim 1 , wherein the apparatus is configured as a power supply of an electric toothbrush.

15 . An electric toothbrush power supply apparatus comprising a main housing having a first power coupler on a first housing portion, a second power coupler inside a second housing portion, and electronic circuitry interconnecting the first power coupler and the second power coupler;

wherein the first power coupler is a power input coupler which is configured for moving in a first direction in order to enter into physical and electrical connection with a power outlet to receive input power;

wherein the second housing portion comprises a platform which is configured for supporting an electrical load in the form of an electric toothbrush and an internal compartment in which the second power coupler is housed, the platform having a platform surface which is parallel to the first direction and extends away from the first power coupler, the second power coupler being a power output coupler;

wherein the electronic circuitry is configured for converting the input power into output power which is suitable for wireless transfer across the second housing portion;

wherein the first housing portion and the second housing portion are integrally joined and the main housing is configured to be water-proof, and the first housing portion is intermediate the second housing portion and the first power coupler,

wherein the first power coupler is configured to cooperate with the power outlet so that the second housing is elevated in a cantilever configuration above a base surface when the power input coupler is attached to a wall-mounted power outlet,

wherein the first power coupler is configured to approach the power outlet in the first direction and the platform surface extends in a second direction to project away from the first housing portion, the second direction being opposite to the first direction; and

wherein the first housing portion extends in a third direction which is orthogonal to the first direction and the second direction to form a partition between the power output coupler and the power input coupler, the partition projecting beyond the platform surface to define a splash guard between the power output coupler and the power input coupler configured to mitigate splashes of conductive liquid into the power outlet, the height of the partition being twice the axial height of the power output coupler.

16 . The apparatus according to claim 15 , wherein the second housing portion comprises a bottom surface, and wherein the platform surface is configured to support the electrical load such that the platform surface is horizontal when the bottom surface is resting on a horizontal surface to support the weight of the apparatus.

17 . The apparatus according to claim 15 , wherein the first housing portion comprises a peripheral wall and the second housing portion comprises a peripheral wall, and wherein the peripheral wall of the first housing portion and the peripheral wall of the second housing portion are integrally formed.

18 . The apparatus according to claim 15 , wherein the power output coupler and the platform surface cooperate to define a docking structure for holding the electrical load.

19 . The apparatus according to claim 15 , wherein the load has an indented housing and the power output coupler is configured to engage with the indented housing to retain the electrical load.