Step-down Conversion Circuit Heat Dissipation via Fan and Conductor
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Solution Overview
Problem
The step-down conversion circuit in wireless charging systems generates excessive heat, which, if not properly dissipated, can lead to overheating and affect the overall temperature of electronic devices, such as mobile phones, thereby compromising user experience and charging efficiency.
Innovation Solution
A step-down conversion circuit assembly that includes a box body, a step-down conversion circuit, a heat dissipation element, and a fan, where the heat dissipation element is attached to the circuit and the fan is positioned to facilitate the exit of heat through an air outlet, enhancing heat dissipation without increasing the overall temperature of the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the step-down conversion circuit operates at high power for wireless quick charging, then charging efficiency is improved, but excessive heat is generated causing over-temperature protection
Solution Approach 1:
The patent implements preliminary thermal management by pre-installing heat dissipation elements and a fan system within the step-down conversion circuit assembly before operation. The fan is positioned to create predetermined airflow pathways through the enclosed accommodating space, ensuring that when high-power wireless quick charging operates, the thermal management system is already in place to handle the expected heat generation, preventing over-temperature protection from activating
Solution Approach 2:
The heat dissipation element acts as an intermediary between the step-down conversion circuit and the external environment. It absorbs heat generated by the circuit and transfers it to the airflow created by the fan, which then carries the heat away through the air outlet. This intermediary heat dissipation system enables high-power operation by mediating the thermal transfer process, preventing direct overheating of the circuit
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 manages heat dissipation, allowing for efficient wireless quick charging without overheating the electronic device, thus improving user experience and maintaining charging performance.
Implementation Method 1
The heat dissipation element is disposed in the accommodating space of the box body and attached to the step-down conversion circuit for conducting heat
Implementation Method 2
The fan is disposed between the step-down conversion circuit and the air outlet and configured to enable the heat in the accommodating space to exit from the air outlet
Data Source
AI summary
A step-down conversion circuit assembly and an electronic device are provided. The step-down conversion circuit assembly includes a box body, a step-down conversion circuit, a heat dissipation element, and a fan. The box body has multiple side walls, where the multiple side walls define an enclosed accommodating space, and the box body defines an air outlet on one of the multiple side walls. The step-down conversion circuit is disposed in the accommodating space of the box body. The heat dissipation element is disposed in the accommodating space of the box body and attached to the step-down conversion circuit for conducting heat. The fan is disposed between the step-down conversion circuit and the air outlet and configured to enable the heat in the accommodating space to exit from the air outlet.