Granted Patent B2

US 12,468,322 · App. 18/070,459 · Granted Nov 11, 2025

Inventors: Zhengwu Luo (Dongguan, CN); Xujun Wang (Dongguan, CN)

Assignee: VIVO MOBILE COMMUNICATION CO., LTD.

G05D23/1917H02J7/00034H02J7/0047H02J50/10

Abstract

Claims (59)

1 . A heat dissipation method for an electronic device, comprising:

monitoring a communication message between the electronic device and a charger in a case that the electronic device is in a charging state, wherein the communication message comprises a charging current value and a temperature value of a charging component of the electronic device;

determining a charging stage of the electronic device based on the charging current value and the temperature value;

determining a running power of a heat dissipation unit based on the charging stage of the electronic device; and

controlling the heat dissipation unit to work at the running power to dissipate heat of the electronic device.

2 . The method according to claim 1 , wherein the determining a charging stage of the electronic device based on the charging current value and the temperature value comprises:

generating a current-time curve and a temperature-time curve based on the charging current value and the temperature value, wherein the current-time curve is a curve representing time-varying charging current values, and the temperature-time curve is a curve representing time-varying temperature values of the charging component; and

determining the charging stage of the electronic device according to the current-time curve and the temperature-time curve.

3 . The method according to claim 2 , wherein the determining the charging stage of the electronic device according to the current-time curve and the temperature-time curve comprises:

determining the charging stage of the electronic device as a trickle charging stage in a case that the charging current value is less than a first threshold and a slope of the temperature-time curve is less than a second threshold;

determining the charging stage of the electronic device as a constant current charging stage in a case that the charging current value is greater than the first threshold, and that the slope of the temperature-time curve is greater than a third threshold or the temperature value is greater than a fourth threshold, wherein the third threshold is greater than 0; and

determining the charging stage of the electronic device as a constant voltage charging stage in a case that a slope of the current-time curve is less than 0 and the slope of the temperature-time curve is less than 0.

4 . The method according to claim 1 , wherein the charging stage comprises a trickle charging stage, a constant current charging stage, and a constant voltage charging stage, and the determining a running power of a heat dissipation unit based on the charging stage of the electronic device comprises:

determining the running power as a first power in a case that the electronic device is in the trickle charging stage;

determining the running power as a second power in a case that the electronic device is in the constant current charging stage; and

determining the running power as a third power in a case that the electronic device is in the constant voltage charging stage, wherein

the second power is greater than the first power, and the first power is greater than the third power.

5 . The method according to claim 1 , wherein monitoring the communication message between the electronic device and the charger in a wired monitoring mode in a case that a mode of charging between the electronic device and the charger is a wired charging mode; and

monitoring the communication message between the electronic device and the charger in a wireless monitoring mode in a case that the mode of charging between the electronic device and the charger is a wireless charging mode.

6 . A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform operations comprising:

monitoring a communication message between an electronic device and a charger in a case that the electronic device is in a charging state, wherein the communication message comprises a charging current value and a temperature value of a charging component of the electronic device;

determining a charging stage of the electronic device based on the charging current value and the temperature value;

determining a running power of a heat dissipation unit based on the charging stage of the electronic device; and

controlling the heat dissipation unit to work at the running power to dissipate heat of the electronic device.

7 . The non-transitory computer-readable medium according to claim 6 , wherein the determining a charging stage of the electronic device based on the charging current value and the temperature value comprises:

generating a current-time curve and a temperature-time curve based on the charging current value and the temperature value, wherein the current-time curve is a curve representing time-varying charging current values, and the temperature-time curve is a curve representing time-varying temperature values of the charging component; and

determining the charging stage of the electronic device according to the current-time curve and the temperature-time curve.

8 . The non-transitory computer-readable medium according to claim 7 , wherein the determining the charging stage of the electronic device according to the current-time curve and the temperature-time curve comprises:

determining the charging stage of the electronic device as a trickle charging stage in a case that the charging current value is less than a first threshold and a slope of the temperature-time curve is less than a second threshold;

determining the charging stage of the electronic device as a constant current charging stage in a case that the charging current value is greater than the first threshold, and that the slope of the temperature-time curve is greater than a third threshold or the temperature value is greater than a fourth threshold, wherein the third threshold is greater than 0; and

determining the charging stage of the electronic device as a constant voltage charging stage in a case that a slope of the current-time curve is less than 0 and the slope of the temperature-time curve is less than 0.

9 . The non-transitory computer-readable medium according to claim 6 , wherein the charging stage comprises a trickle charging stage, a constant current charging stage, and a constant voltage charging stage, and the determining a running power of a heat dissipation unit based on the charging stage of the electronic device comprises:

determining the running power as a first power in a case that the electronic device is in the trickle charging stage;

determining the running power as a second power in a case that the electronic device is in the constant current charging stage; and

determining the running power as a third power in a case that the electronic device is in the constant voltage charging stage, wherein

the second power is greater than the first power, and the first power is greater than the third power.

10 . The non-transitory computer-readable medium according to claim 6 , wherein monitoring the communication message between the electronic device and the charger in a wired monitoring mode in a case that a mode of charging between the electronic device and the charger is a wired charging mode; and

monitoring the communication message between the electronic device and the charger in a wireless monitoring mode in a case that the mode of charging between the electronic device and the charger is a wireless charging mode.

11 . A heat dissipation device, comprising:

a memory storing computer-readable instructions; and

a processor coupled to the memory and configured to execute the computer-readable instructions, wherein the computer-readable instructions, when executed by the processor, cause the processor to perform operations comprising:

monitoring a communication message between an electronic device and a charger in a case that the electronic device is in a charging state, wherein the communication message comprises a charging current value and a temperature value of a charging component of the electronic device;

determining a charging stage of the electronic device based on the charging current value and the temperature value;

determining a running power of a heat dissipation unit based on the charging stage of the electronic device; and

controlling the heat dissipation unit to work at the running power to dissipate heat of the electronic device.

12 . The heat dissipation device according to claim 11 , wherein the determining a charging stage of the electronic device based on the charging current value and the temperature value comprises:

generating a current-time curve and a temperature-time curve based on the charging current value and the temperature value, wherein the current-time curve is a curve representing time-varying charging current values, and the temperature-time curve is a curve representing time-varying temperature values of the charging component; and

determining the charging stage of the electronic device according to the current-time curve and the temperature-time curve.

13 . The heat dissipation device according to claim 12 , wherein the determining the charging stage of the electronic device according to the current-time curve and the temperature-time curve comprises:

determining the charging stage of the electronic device as a trickle charging stage in a case that the charging current value is less than a first threshold and a slope of the temperature-time curve is less than a second threshold;

determining the charging stage of the electronic device as a constant current charging stage in a case that the charging current value is greater than the first threshold, and that the slope of the temperature-time curve is greater than a third threshold or the temperature value is greater than a fourth threshold, wherein the third threshold is greater than 0; and

determining the charging stage of the electronic device as a constant voltage charging stage in a case that a slope of the current-time curve is less than 0 and the slope of the temperature-time curve is less than 0.

14 . The heat dissipation device according to claim 11 , wherein the charging stage comprises a trickle charging stage, a constant current charging stage, and a constant voltage charging stage, and the determining a running power of a heat dissipation unit based on the charging stage of the electronic device comprises:

determining the running power as a first power in a case that the electronic device is in the trickle charging stage;

determining the running power as a second power in a case that the electronic device is in the constant current charging stage; and

determining the running power as a third power in a case that the electronic device is in the constant voltage charging stage, wherein

the second power is greater than the first power, and the first power is greater than the third power.

15 . The heat dissipation device according to claim 11 , wherein monitoring the communication message between the electronic device and the charger in a wired monitoring mode in a case that a mode of charging between the electronic device and the charger is a wired charging mode; and

monitoring the communication message between the electronic device and the charger in a wireless monitoring mode in a case that the mode of charging between the electronic device and the charger is a wireless charging mode.

Assignments (2)

Priority Claims (1)

Continuity (2)

References Cited (15)