Charging station, charging system and a method for automatically charging a device

1. A charging station configured to be electrically connected to an electrical power socket on a wall, and configured to charge an automatic device, the charging station comprising:

a main body configured to be electrically connected to the electrical power socket on the wall;

a rotatable arm rotatably connected to the main body;

a restoring member connected between the main body and the rotatable arm;

a station-side charging port disposed on a bottom surface of the rotatable arm; and

a station-side magnetic member disposed on the bottom surface of the rotatable arm, wherein an entirety of the charging station is disposed on the wall and located higher than the automatic device to allow the automatic device to move freely in an area beneath the charging station.

2. The charging station of claim 1 , further comprising:

a protective cover connected to the main body and covering the rotatable arm, the protective cover having an opening, wherein the station-side charging port is exposed through the opening when the rotatable arm is rotated relative to the main body to a charging position.

3. The charging station of claim 1 , wherein the station-side magnetic member comprises a permanent magnet or an electromagnet.

4. The charging station of claim 1 , wherein the main body has a recessed portion, and the rotatable arm is rotatably connected to a side wall of the recessed portion.

5. The charging station of claim 1 , wherein the restoring member comprises a tension spring.

6. A charging system, comprising:

a charging station configured to be electrically connected to an electrical power socket on a wall, the charging station having a station-side charging port and a station-side magnetic member that are disposed on a bottom surface of a rotatable arm; and

a battery-powered automatic device configured to move on a floor, and comprising:

a chassis;

a device-side charging port disposed on the chassis and configured to electrically couple with the station-side charging port; and

a device-side magnetic member disposed on the chassis and configured to attract and attach to the station-side magnetic member, wherein an entirety of the charging station is disposed on the wall and located higher than the battery-powered automatic device.

7. The charging system of claim 6 , wherein the chassis has a top surface, the device-side charging port and the device-side magnetic member are exposed on the top surface.

8. A charging method configured to charge a battery-powered automatic device moving on a floor with a charging station electrically connected to an electrical power socket on a wall, the charging station comprising a main body, a rotatable arm rotatably connected to the main body, and a station-side charging port and a station-side magnetic member both disposed on a bottom surface of the rotatable arm, the automatic device comprising a device-side charging port and a device-side magnetic member, the charging method comprising:

disposing the charging station on the wall, wherein an entirety of the charging station is disposed on the wall and located higher than the automatic device;

moving the automatic device to an underside and below the charging station; and

magnetically attracting the station-side magnetic member with the device-side magnetic member, such that the rotatable arm is rotated towards the automatic device, and that the station-side charging port electrically couples with the device-side charging port.

9. The charging method of claim 8 , wherein the charging station further comprises a restoring member connected between the main body and the rotatable arm, and the charging method further comprises:

after battery charging process is completed, decoupling the station-side magnetic member and the device-side magnetic member, such that the rotatable arm is rotated away from the automatic device by the restoring member, and that the station-side charging port detaches from the device-side charging port.

10. The charging method of claim 8 , wherein the station-side magnetic member is a permanent magnet, the device-side magnetic member is an electromagnet, and magnetically attracting the station-side magnetic member with the device-side magnetic member comprises:

providing electric power to the electromagnet to magnetically attract the permanent magnet.