Wearable Charging Case Thermal Control With Thermoelectric Cooling

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Solution Overview

Problem

Wearable electronic devices face challenges in dissipating heat generated during operation, leading to increased temperatures that can damage components and reduce their lifespan when stored in protective cases, due to the sealed internal space which hinders heat dissipation.

Innovation Solution

A case device equipped with a thermoelectric module and a heat radiating member, which is partially exposed through accommodating grooves, allows for effective heat dissipation by controlling the thermoelectric module based on the wearable device's state information to maintain optimal temperature levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the case device has a sealed internal space for protecting the wearable device, then the protective function is improved, but heat dissipation capability deteriorates

Engineering Contradiction:
Improveprotective functionVSAvoidheat dissipation capability
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The case device housing is segmented with through-type accommodating grooves that divide the sealed internal space into regions, allowing heat dissipation pathways to be integrated into the protective structure. The grooves create channels that enable heat to escape while maintaining overall protection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A thermoelectric module is introduced as an intermediary component between the wearable device and the external environment. This module actively manages heat transfer, enabling the sealed case to dissipate heat controlled by the processor based on temperature sensors.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the case device is completely sealed to protect components, then protection capability is improved, but heat dissipation deteriorates

Engineering Contradiction:
Improveprotection capabilityVSAvoidheat dissipation
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The sealed structure is segmented by incorporating through-type accommodating grooves that create heat dissipation channels. These grooves are strategically positioned to allow heat to escape from the internal space while maintaining protection against external harmful factors.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Temperature sensors detect the temperature of the wearable device and provide feedback to the processor. The processor then controls the thermoelectric module to actively manage heat dissipation, creating a closed-loop system that balances protection and heat management.

Inventive Principle:
Principle #23Feedback

3Reliability

If the internal space is sealed for storage protection, then storage safety is improved, but temperature control deteriorates

Engineering Contradiction:
Improvestorage safetyVSAvoidtemperature control
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The thermoelectric module serves as an intermediary that enables active temperature control within the sealed storage space. It can pump heat from the wearable device to the external environment, allowing precise temperature management while maintaining the sealed protective enclosure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

Temperature sensors continuously monitor the internal temperature and provide feedback to the processor. Based on this feedback, the processor adjusts the operation of the thermoelectric module to maintain optimal temperature conditions for stored devices.

Inventive Principle:
Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively limits temperature increases in wearable devices, preventing component damage and extending their lifespan by efficiently dissipating heat generated by both the device and the case itself.

Implementation Method 1

at least one thermoelectric module disposed to be partially exposed through the at least one accommodating groove

Methodology Applied
Scientific EffectThermoelectric effect: Peltier Effect

Implementation Method 2

a heat radiating member disposed adjacent to the at least one thermoelectric module

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentUS20230283090A1Case device and method presenting charging function
Publication Date: 2023.09.07 SAMSUNG ELECTRONICS CO LTD
  • US20230283090A1 patent drawing
  • US20230283090A1 patent drawing
  • US20230283090A1 patent drawing

AI summary

A case device for presenting a charging function of various embodiments of the present disclosure may include a housing including an internal space for accommodating a wearable device, a communication interface for presenting a wired or wireless connection with the wearable device, at least one accommodating groove formed in the internal space for accommodating the wearable device, at least one thermoelectric module disposed to be partially exposed through the at least one accommodating groove, a heat radiating member disposed adjacent to the at least one thermoelectric module, a battery disposed inside the housing, and at least one processor electrically connected to the communication interface, the at least one thermoelectric module, the heat radiating member, and the battery. The at least one processor may acquire state information of the wearable device, and control the at least one thermoelectric module, based on the state information of the wearable device.