Head-mounted heat dissipation device
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Solution Overview
Problem
Existing head-mounted heat dissipation devices with open fan designs often cause hair entanglement and safety hazards due to exposed fan blades, leading to discomfort and reduced safety.
Innovation Solution
A head-mounted heat dissipation device featuring a casing with air outlets on the inner side of the bottom surface and air guide strips that conceal the fan operation, using centrifugal fans with air guide grooves and a double inlet design to enhance airflow and prevent foreign objects from touching the fan blades, along with a battery placement for balance and a headband for adjustability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an open fan design is used to reduce weight and improve air volume, then the heat dissipation efficiency is improved, but the safety is worsened due to hair entanglement and foreign object contact risks
Solution Approach 1:
The patent introduces an intermediary structure (casing with air guide strips) between the fan and the external environment. The air guide strips act as a mediator that directs airflow while preventing direct contact between the fan blades and external objects like hair, thus maintaining heat dissipation efficiency while improving safety
Solution Approach 2:
The patent employs a casing structure with air guide strips that form a protective barrier. This shell-like structure allows airflow to pass through while physically isolating the fan blades from contact with hair and foreign objects, resolving the contradiction between open design for cooling and enclosed design for safety
2Productivity
If the air outlets are positioned on the bottom surface to blow air to the user's face, then the heat dissipation effectiveness is improved, but the risk of foreign object contact with fan blades increases
Solution Approach 1:
The patent positions air outlets on the bottom surface of the casing, utilizing the vertical dimension to direct airflow upward toward the user's face. This dimensional arrangement allows effective heat dissipation while the casing structure simultaneously prevents foreign objects from reaching the fan blades from below
3Reliability
If a traditional shielding structure is used to protect the fan, then the safety is improved, but the airflow guidance and comfort are worsened
Solution Approach 1:
The patent applies air guide strips with specific directional orientations at different locations of the air outlet. These strips have localized qualities that guide airflow in specific directions to enhance comfort, while collectively forming a protective barrier that maintains safety without the need for traditional bulky shielding structures
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 effectively guides airflow, prevents hair entanglement and foreign object contact with fan blades, enhancing user comfort and safety while providing effective heat dissipation.
Implementation Method 1
the fans are centrifugal fans, which are disposed inside the casing
Data Source
AI summary
A head-mounted heat dissipation device includes a fan assembly and a wearing assembly. The wearing assembly is connected to the fan assembly to fix the fan assembly onto a head of a user. The fan assembly includes a casing and fans arranged in the casing. Air inlets and air outlets are defined in the casing. The air outlets are located on an inner side of the bottom surface of the casing, so that the air from the air outlets can be blown to the user's face. In addition, air guide strips are arranged side by side on a side of the air outlet within the casing for concealing the operation of the fans.