Wireless Charger Airflow Structure for Display Surface Cooling
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Solution Overview
Problem
Conventional wireless chargers suffer from inadequate heat dissipation on the display surface and rear surface of terminal devices, limiting charging power and speed.
Innovation Solution
A wireless charger design featuring a housing with a contact plate, a fan for dissipating heat, an airflow guide structure directing airflow towards the display surface, and air ducts on the contact plate to enhance heat dissipation, along with optional auxiliary structures like refrigeration units or additional fans for improved thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If natural heat dissipation is used for the display surface, then the structure remains simple, but heat dissipation efficiency is poor
Solution Approach 1:
The patent introduces an airflow guide structure that extends from the housing side toward the display surface, creating a new spatial dimension for heat dissipation. This structure includes flow channels that guide airflow in a direction perpendicular to the traditional bottom-up approach, enabling multi-dimensional heat dissipation that significantly improves cooling efficiency without substantially increasing structural complexity
Solution Approach 2:
The airflow guide structure acts as an intermediary component between the fan and the display surface. It receives airflow from the fan and redirects it toward the display surface through carefully designed flow channels, effectively mediating the heat transfer process and improving cooling efficiency without requiring direct contact between the fan and display surface
2Device complexity
If only bottom surface contact cooling is used, then the structure is simple, but overall heat dissipation is limited
Solution Approach 1:
The patent segments the heat dissipation function into multiple independent components: bottom surface contact cooling through the housing, side surface cooling through the airflow guide structure, and display surface cooling through directed airflow. This segmentation allows each component to specialize in cooling specific areas, significantly improving overall heat dissipation efficiency and enabling higher charging speeds
Solution Approach 2:
The airflow guide structure serves multiple functions simultaneously: it guides airflow from the fan, directs cooling air toward the display surface, provides structural support, and maintains a compact design. This multi-functionality improves heat dissipation efficiency without proportionally increasing device complexity, thereby supporting higher charging speeds
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 design significantly enhances heat dissipation on both the display and rear surfaces of terminal devices, increasing charging power and speed by at least 20% compared to conventional methods, while ensuring efficient wireless charging.
Implementation Method 1
a first fan, capable of dissipating heat of the wireless charging module
Implementation Method 2
blows toward the display surface of the terminal device through the first air exhaust vent to dissipate heat of the display surface
Implementation Method 3
a housing, including a contact plate used for contact with the rear surface of the terminal device
Data Source
Figure 1a
Figure 1b~1c
Figure 2a
AI summary
Embodiments of this application provide a wireless charger, and relate to the field of charging device technologies. The wireless charger is configured to charge a terminal device, the terminal device includes a display surface and a rear surface that are opposite to each other, and the wireless charger includes: a housing, including a contact plate used for contact with the rear surface of the terminal device; a wireless charging module; a first fan, capable of dissipating heat of the wireless charging module, where both the wireless charging module and the first fan are disposed in the housing, and an air intake vent is disposed at a position that is of the housing and that is close to the first fan; and an airflow guide structure, disposed on a side that is of the housing and that is adjacent to the contact plate, where the airflow guide structure extends toward the display surface of the terminal device, the airflow guide structure includes a flow channel, a first air exhaust vent connected to the flow channel is disposed at a position that is of the airflow guide structure and that is close to the display surface of the terminal device, an air vent connected to space in which the first fan is located is disposed at a position that is of the housing and at which the airflow guide structure is disposed, and the air vent is connected to the flow channel.