Terminal device, method for leakage detection therefor

Patent metadata

Field	Value
Publication number	US-11054483-B2
Application number	US-201916413120-A
Country	US
Kind code	B2
Filing date	May 15, 2019
Priority date	Feb 1, 2018
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

Provided are a terminal device and a method for leakage detection therefor. The method includes the following. Power consumption of the battery is detected, upon determining that the terminal device is fully charged and remains coupled with the adapter and at least one power-consuming component of the terminal device is in a non-working state, the at least one power-consuming component is powered by the battery when the terminal device is fully charged and remains coupled with the adapter. Whether the terminal device experiences leakage is determined according to power consumption of the battery.

First claim

What is claimed is:

1. A method for leakage detection for a terminal device, the method comprising:
detecting power consumption of a battery of a terminal device, upon determining that the terminal device is fully charged and remains coupled with an adapter; and at least one power-consuming component of the terminal device is in a non-working state, the at least one power-consuming component being powered by the battery when the terminal device is fully charged and remains coupled with the adapter; and
determining whether the terminal device experiences leakage according to the power consumption of the battery.

2. The method of claim 1 , wherein the power consumption refers to at least one of voltage variation of the battery and current consumption of the battery.

3. The method of claim 2 , wherein the terminal device is determined to experience leakage when at least one of the following conditions is met:
the voltage variation indicates that voltage of the battery continues to drop within a preset time period;
the voltage variation within the preset time period exceeds a preset threshold; or
the current consumption is stable and lasts longer than the preset time period.

4. The method of claim 1 , wherein the at least one power-consuming component is in the non-working state when the terminal device is in a low-power state.

5. The method of claim 4 , wherein the low-power state comprises a screen-off standby state and a power-off state.

6. The method of claim 1 , further comprising:
controlling the terminal device to display information indicative of power consumption of the battery, and controlling the terminal device to send out leakage prompt information upon determining that the terminal device experiences leakage.

7. A terminal device, comprising:
a battery;
at least one power-consuming component, powered by the battery when the terminal device is fully charged by an adapter and remains coupled with the adapter;
a detecting circuit, configured to detect power consumption of the battery when the at least one power-consuming component is in a non-working state; and
a processor, coupled with the detecting circuit and configured to determine whether the terminal device experiences leakage according to the power consumption detected.

8. The terminal device of claim 7 , wherein the detecting circuit comprises at least one of a voltage detecting circuit and a current detecting circuit.

9. The terminal device of claim 8 , wherein the voltage detecting circuit comprises:
a first resistor, having one end coupled with one end of the battery; and
a second resistor, having one end coupled with the other end of the first resistor at a first node and another end grounded, the first node being served as an output of the voltage detecting circuit.

10. The terminal device of claim 8 , wherein the current detecting circuit comprises:
a first resistor, having one end coupled with one end the battery, and the other end coupled with the other end of the battery via the at least one power-consuming component;
a second resistor, having one end coupled with the one end of the first resistor;
a third resistor, having one end coupled with the other end of the first resistor;
an amplifier, having an negative input end coupled with another end of the second resistor, a positive input end coupled with another end of the third resistor; and
a fourth resistor, coupled between the negative input end and an output end of the amplifier, the output end of the amplifier being served as an output end of the current detecting circuit.

11. The terminal device of claim 8 , wherein the power consumption refers to at least one of voltage variation of the battery and current consumption of the battery.

12. The terminal device of claim 11 , wherein the terminal device is determined to experience leakage when at least one of the following conditions is met:
the voltage variation indicates that voltage of the battery continues to drop within a preset time period;
the voltage variation within the preset time period exceeds a preset threshold; or
the current consumption is stable and lasts longer than the preset time period.

13. The terminal device of claim 7 , wherein the at least one power-consuming component is in the non-working state when the terminal device is in a low-power state.

Assignees

• Guangdong Oppo Mobile Telecommunications Corp Ltd

Inventors

• Chen Wei

Classifications

• H02J7/865

  Battery or charger load switching, e.g. concurrent charging and load supply (H02J7/50 takes precedence) · CPC title

• H02J7/63

  against overdischarge · CPC title

• H02J7/933

  the cycle being controlled or terminated in response to electric parameters · CPC title

• H02J7/60 Primary

  including safety or protection arrangements · CPC title

• G01R31/392 Primary

  Determining battery ageing or deterioration, e.g. state of health · CPC title