Wireless Charger Cooling with Semiconductor Refrigeration Sheet
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless chargers experience heating issues that lead to reduced charging speed and shortened service life for both the charger and mobile devices, necessitating an effective cooling solution.
Innovation Solution
A wireless charger with a cooling function is designed, featuring a radiating module with a semiconductor refrigeration sheet and a radiating mechanism, including a fan, radiating sheet, and heat-conducting fins, which are strategically positioned to dissipate heat generated by the wireless charging coil and control circuit board, utilizing heat-conducting materials and a magnetic ring for enhanced heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless charging coil is used for charging, then wireless charging function is achieved, but heating is generated reducing charging speed and service life
Solution Approach 1:
A semiconductor refrigeration sheet is introduced as an intermediary component between the wireless charging coil and the radiating mechanism. The refrigeration sheet actively removes heat generated during wireless charging, acting as a mediator that separates the heat generation source from the charging function, thereby maintaining low charging temperature while preserving wireless charging capability
Solution Approach 2:
The heat generation aspect is extracted and separated from the wireless charging coil system. By removing heat through the refrigeration sheet and radiating mechanism, the harmful thermal effect is taken out from the charging process, allowing the wireless charging function to operate independently without the negative impact of heat accumulation
2Duration of action of stationary object
If cooling structure is added to reduce temperature, then service life is extended, but device complexity increases
Solution Approach 1:
The cooling function is merged with the existing wireless charging coil structure. The semiconductor refrigeration sheet and radiating mechanism are integrated into the charger body, combining the charging and cooling functions into a unified structure rather than adding separate independent cooling systems, thereby extending service life with minimal increase in overall device complexity
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
This configuration effectively reduces the temperature of both the wireless charging coil and mobile phone, improving charging efficiency and extending the service life of the charger and mobile device by efficiently dissipating heat.
Implementation Method 1
The semiconductor refrigeration sheet is located between the wireless charging coil and the radiating mechanism. A refrigerating surface of the semiconductor refrigeration sheet faces the wireless charging coil, and a heating surface of the semiconductor refrigeration sheet faces the radiating mechanism.
Implementation Method 2
The radiating mechanism includes a radiating fan, a radiating sheet, and a plurality of flaky or columnar radiating fins
Implementation Method 3
The surfaces of the radiating sheet and the radiating fins are all coated with heat conducting materials
Implementation Method 4
A heat conducting sheet is arranged between the silicone sheet and the wireless charging coil. Both the outer wall of the magnetic ring and the surface of the wireless charging coil are coated with heat-conducting materials.
Data Source
AI summary
The present disclosure provides a wireless charger with a cooling function, including a front shell and a radiating rear shell. A radiating module and a wireless charging coil are mounted in a mounting space enclosed by the front shell and the radiating rear shell. The wireless charging coil and/or the front shell is provided with radiating holes communicated with the mounting space. The wireless charging coil is arranged in the mounting space, and is located at the lower end of the front shell. The radiating module includes: a radiating mechanism and a semiconductor refrigeration sheet. The radiating mechanism is arranged below the wireless charging coil. The semiconductor refrigeration sheet is located between the wireless charging coil and the radiating mechanism. A refrigerating surface of the semiconductor refrigeration sheet faces the wireless charging coil, and a heating surface of the semiconductor refrigeration sheet faces the radiating mechanism.