Wireless charging device, the method thereof and security device including wireless charging device

Patent metadata

Field	Value
Publication number	US-11962182-B2
Application number	US-202015733444-A
Country	US
Kind code	B2
Filing date	Jan 21, 2020
Priority date	Feb 19, 2019
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

An embodiment of the present disclosure discloses a wireless charging device comprising a wireless receiving module, a controller, a first charging module, and a second charging module. The wireless receiving module is configured to receive a wireless charging signal in response to the wireless charging device being in a wireless sensing area, transmit a state indication signal to the controller, receive a charging indication signal from the controller, and determine whether to transmit the wireless charging signal to the first charging module according to the charging indication signal. The controller is configured to transmit the charging indication signal to the wireless receiving module according to the state indication signal, and in response to the charging indication signal instructing the wireless receiving module to transmit the wireless charging signal, output a control signal to the first charging module to control the first charging module to receive the wireless charging signal, charge the second charging module, and output an electrical signal. The first charging module is configured to, in response to receiving the control signal, receive the wireless charging signal, charge the second charging module, and output the electrical signal.

First claim

We claim:

1. A wireless charging device comprising a wireless receiving module, a controller, a first charging module, and a second charging module, wherein:
the wireless receiving module is configured to receive a wireless charging signal from an external wireless transmitting module in response to the wireless charging device being in a wireless sensing area, transmit a state indication signal to the controller, receive a charging indication signal from the controller, and determine whether to transmit the wireless charging signal to the first charging module according to the charging indication signal, wherein the state indication signal comprises information indicating that the wireless charging device is in a wireless charging state and a level signal of the wireless charging signal;
the controller is connected to the wireless receiving module, and is configured to transmit the charging indication signal to the wireless receiving module according to the state indication signal, and in response to the charging indication signal instructing the wireless receiving module to transmit the wireless charging signal to the first charging module, output a control signal to the first charging module to control the first charging module to receive the wireless charging signal from the wireless receiving module, charge the second charging module, and output an electrical signal; and
the first charging module is connected to the controller and the second charging module, and is configured to, in response to receiving the control signal, receive the wireless charging signal from the wireless receiving module, charge the second charging module, and output the electrical signal;
wherein the controller is further configured to:
in response to the state indication signal indicating that the wireless charging device is in the wireless charging state, determine whether the wireless charging device is in a normal charging state by comparing the level signal included in the state indication signal with a threshold value;
transmit the charging indication signal to the wireless receiving module to instruct the wireless receiving module to transmit the wireless charging signal to the first charging module, if the wireless charging device is in the normal charging state; otherwise
transmit the charging indication signal to the wireless receiving module to instruct the wireless receiving module not to transmit the wireless charging signal to the first charging module.

2. The wireless charging device according to claim 1 , wherein the wireless receiving module is further configured to transmit the state indication signal to the controller in response to the wireless charging device not being in the wireless sensing area, wherein the state indication signal comprises information indicating that the wireless charging device is not in the wireless charging state; and
the controller is further configured to: in response to the state indication signal indicating that the wireless charging device is not in the wireless charging state, transmit the charging indication signal to the wireless receiving module to instruct the wireless receiving module not to transmit the wireless charging signal to the first charging module.

3. The wireless charging device according to claim 2 , wherein the controller is further configured to:
in response to the charging indication signal instructing the wireless receiving module not to transmit the wireless charging signal to the first charging module, output a control signal to the second charging module to control the second charging module to output an electrical signal; and
wherein the second charging module is connected to the controller, and is configured to output the electrical signal in response to receiving the control signal.

4. The wireless charging device according to claim 3 , further comprising:
a converter connected to the controller, the first charging module, and the second charging module,
wherein the controller is further configured to transmit an activation command to the converter in response to receiving a charging request from a module to be powered, and
the converter is configured to: upon receiving the activation command from the controller, in response to the charging indication signal instructing the wireless receiving module to transmit the wireless charging signal to the first charging module, receive the electrical signal from the first charging module, and convert the electrical signal to output the converted electrical signal to the module to be powered; and in response to the charging indication signal instructing the wireless receiving module not to transmit the wireless charging signal to the first charging module, receive the electrical signal from the second charging module, and convert the electrical signal to output the converted electrical signal to the module to be powered.

5. The wireless charging device according to claim 4 , wherein the module to be powered is a locking device.

6. The wireless charging device according to claim 1 , wherein the first charging module is a power supply module, and the second charging module is a rechargeable battery.

7. The wireless charging device according to claim 1 , wherein the controller is further configured to:
in response to the state indication signal indicating that the wireless charging device is in the wireless charging state, determine that the wireless charging device is in the normal charging state if the level signal is lower than the threshold value; otherwise, determine that the wireless charging device is in an abnormal charging state.

8. The wireless charging device according to claim 7 , further comprising an output module connected to the controller, wherein the controller is further configured to:
when it is determined that the wireless charging device is in the abnormal charging state, transmit an abnormality indication signal to the output module to indicate that the wireless charging device is in the abnormal charging state, and
the output module is configured to receive the abnormality indication signal from the controller and output the abnormality indication signal to a user.

9. The wireless charging device according to claim 1 , wherein the wireless receiving module is further configured to:
transmit the wireless charging signal to the first charging module when the charging indication signal instructs the wireless receiving module to transmit the wireless charging signal to the first charging module; and
not transmit the wireless charging signal to the first charging module when the charging indication signal instructs the wireless receiving module not to transmit the wireless charging signal to the first charging module.

10. A security device comprising:
the wireless charging device according to claim 1 ; and
a locking device connected to the wireless charging device and configured to receive the electrical signal from the wireless charging device to perform an unlocking or locking operation according to an external instruction.

11. A wireless charging method comprising:
determining, by a wireless receiving module, whether a wireless charging device is in a wireless sensing area, receiving a wireless charging signal from an external wireless transmitting module, and transmitting a state indication signal to a controller, wherein the state indication signal comprises information indicating that the wireless charging device is in a wireless charging state and a level signal of the wireless charging signal;
determining, by the controller, a charging indication signal according to the state indication signal, and transmitting the charging indication signal to the wireless r

Assignees

• Nuctech Co Ltd
• Univ Tsinghua

Inventors

• Chen Zhiqiang
• Li Yuanjing
• Wu Xianghao
• Chen Yongning

Classifications

• H02J7/80

  including monitoring or indicating arrangements · CPC title

• H02J7/685

  using connection detecting circuits (H02J7/68 takes precedence) · CPC title

• H02J7/02 Primary

  for charging batteries from AC mains by converters · CPC title

• E05B47/00

  Operating or controlling locks or other fastening devices by electric or magnetic means (electric permutation locks E05B49/00) · CPC title

• H02J7/0047

  Electricity · mapped topic