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Samsung patents phone heat control using multiple internal sensors

Patent drawing
Patent drawing from the official filing.

Samsung describes a method for electronic devices to manage heat during charging by using multiple temperature sensors placed at different spots inside the housing. The system calculates a predicted surface temperature based on these readings and the device's current activity, then adjusts the charging power to keep the device from getting too hot.

Why it mattersThis improves battery safety and user comfort by preventing the device from overheating during fast charging, especially when the phone is in use or held in hand.

In the filing’s own words

An electronic device having a housing, a battery, a charging circuit, a plurality of temperature sensors in the housing, a processor operatively connected with the battery, the charging circuit, and the plurality of temperature sensors, and a memory. The memory storing instructions configured to, when executed, enable the electronic device to measure temperature values using one or more of the plurality of temperature sensors, in response to a temperature value associated with the battery being within a threshold value, calculate a predicted surface temperature based on at least one of the measured temperature values and a position of each temperature sensor, identify a control step among a plurality of control steps based on an operational state of at least one device associated with the electronic device and the predicted surface temperature, and adjust charging power for the battery through the charging circuit in response to the identified control step.

What exactly they claim (claim 1)

1. An electronic device comprising: a housing; a battery; a charging circuit; a plurality of temperature sensors each disposed in a different positions within the housing; at least one processor operatively connected with the battery, the charging circuit, and the plurality of temperature sensors; and memory, wherein the memory stores instructions configured to, when executed by the at least one processor, enable the electronic device to, measure temperature values using the plurality of temperature sensors based at least in part on a determination that an external device for charging is connected to the electronic device, in response to a temperature value associated with the battery being within a threshold range, calculate a predicted surface temperature based on a maximum value among values obtained by multiplying average temperature values measured using each of the plurality of temperature sensors by respective distances from a center position of the electronic device to the plurality of temperature sensors, identify a control step among a plurality of control steps based on an operational state of the electronic device and the predicted surface temperature, wherein the operational state includes at least one of aser activity state or user contact state, and adjust charging power for the battery through the charging circuit in response to the identified control step.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Method for controlling surface heat generation electronic device and storage medium therefor
Patent number
US12748470B2
Application number
17977426
Filed
Oct 31, 2022
Granted
Sep 29, 2026
Inventors
1
Claims
16

Classified under

G06F 1/206 Physics & computingG06F 1/203 Physics & computingH02J 7/975 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.