IP Library Granted Patent US 12691768
Granted Patent B2
US 12691768 · App. 17/854,028 · Granted Jul 28, 2026

Self-driving device system and charging station

Inventor: Zhijian Lu (Nanjing, CN)
Assignee: Nanjing Chervon Industry Co., Ltd.
B60L53/00B60L50/60H02J7/50H02J7/70A01D34/008A01D2101/00B60L2200/40B60L2210/30H02J2207/20
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Quick Facts
Patent No.
US 12691768
App. No.
17/854,028
Granted
Jul 28, 2026
Kind
B2
Abstract

A self-driving device system includes a self-driving device, a charging station, and an adapter. The self-driving device can automatically walk and operate in a work area. The charging station is configured to charge the self-driving device. The adapter is configured to convert utility power to a low-voltage alternating current and output the low-voltage alternating current to the charging station. The charging station includes at least an input interface and a first output interface. The input interface is configured to connect to the adapter to receive the low-voltage alternating current. The first output interface is configured to output the low-voltage alternating current to the self-driving device. The self-driving device includes a charging interface. The charging interface is configured to receive a low-voltage alternating current.

Claims (32)

1 . A self-driving device system, comprising:

a self-driving device capable of automatically walking and operating in a work area;

a charging station configured to charge the self-driving device; and

an adapter configured to convert utility power to a low-voltage alternating current and output the low-voltage alternating current to the charging station;

wherein the charging station comprises:

an input interface connected to the adapter and configured to receive the low-voltage alternating current output by the adapter; and

a first output interface connected to the self-driving device and configured to output the low-voltage alternating current to the self-driving device; and

the self-driving device comprises:

a charging interface connected to the first output interface of the charging station to receive the low-voltage alternating current.

2 . The self-driving device system according to claim 1 , wherein the input interface of the charging station is electrically connected to the first output interface of the charging station by a printed circuit board (PCB).

3 . The self-driving device system according to claim 1 , wherein the self-driving device further comprises a charging power circuit and the charging power circuit is connected to the charging interface to convert the low-voltage alternating current to a low-voltage direct current.

4 . The self-driving device system according to claim 3 , wherein the self-driving device further comprises a charging output interface and a battery set and the charging output interface is connected to the charging power circuit to output the low-voltage direct current and configured to charge the battery set of the self-driving device.

5 . The self-driving device system according to claim 4 , wherein the self-driving device further comprises a charging control module configured to adjust an input voltage and an output voltage of the charging power circuit to adapt to the battery set.

6 . The self-driving device system according to claim 3 , wherein the charging power circuit comprises at least a rectifier circuit and a filter circuit.

7 . The self-driving device system according to claim 6 , wherein the rectifier circuit comprises at least a rectifier bridge and the filter circuit comprises at least an electrolytic capacitor.

8 . The self-driving device system according to claim 1 , wherein the adapter comprises an alternating current input interface, a transformer isolation circuit, and a low-voltage alternating current output interface.

9 . The self-driving device system according to claim 8 , wherein the transformer isolation circuit comprises at least one of a switching power supply or an isolation transformer.

10 . The self-driving device system according to claim 8 , wherein the low-voltage alternating current output interface is electrically connected to the input interface of the charging station and configured to output the low-voltage alternating current to the charging station.

11 . The self-driving device system according to claim 1 , wherein the low-voltage alternating current may be one of a square wave alternating current, a sinusoidal alternating current, or a modified sine wave alternating current.

12 . The self-driving device system according to claim 1 , wherein a range of a voltage value of the low-voltage alternating current is greater than or equal to 20 V and less than or equal to 60 V.

13 . The self-driving device system according to claim 1 , wherein the self-driving device system further comprises a boundary line configured to plan the work area of the self-driving device.

14 . The self-driving device system according to claim 13 , wherein the charging station further comprises a boundary power module configured to convert the low-voltage alternating current received by the input interface to a direct current and a second output interface connected to the boundary power module and configured to output the direct current to supply power to the boundary line.

15 . The self-driving device system according to claim 1 , wherein the self-driving device further comprises a battery set configured to provide electrical energy for the self-driving device and comprising one or more pluggable battery packs, and the one or more pluggable battery packs are capable of providing a source of energy for other power tools.

16 . A self-driving device system, comprising:

a self-driving device capable of walking and operating in a work area;

a charging station configured to charge the self-driving device; and

an adapter configured to convert utility power to a low-voltage alternating current and output the low-voltage alternating current to the charging station;

wherein the charging station comprises:

an input interface connected to the adapter and configured to receive the low-voltage alternating current output by the adapter; and

a first output interface connected to the self-driving device and configured to output the low-voltage alternating current to the self-driving device.

17 . The self-driving device system according to claim 16 , wherein the self-driving device comprises a charging interface, a charging power circuit, and a charging output interface, the charging interface is connected to the first output interface of the charging station to receive the low-voltage alternating current, the charging power circuit is connected to the charging interface to convert the low-voltage alternating current received by the charging interface to a low-voltage direct current, and the charging output interface is connected to the charging power circuit to output the low-voltage direct current to power the self-driving device.

18 . The self-driving device system according to claim 16 , wherein a range of a voltage value of the low-voltage alternating current is greater than or equal to 20 V and less than or equal to 60 V.