Handheld Refrigeration Fan With Conductive-Sheet Palm Cooling
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Solution Overview
Problem
Hand-held fans cause a hot and moist palm sensation after prolonged use, negatively affecting user experience and the cooling effect.
Innovation Solution
A hand-held refrigeration fan with a conductive sheet on its outer surface, connected to a refrigeration apparatus that provides a cooling effect through palm contact, and a heat dissipation mechanism using a high-speed airflow to prevent heat accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a hand-held fan is used for a long time, then the fan can provide continuous cooling function, but the palm becomes hot and moist, reducing cooling effect and user experience
Solution Approach 1:
The hand-held portion is divided into separate functional modules: a refrigeration apparatus for cooling, a heat dissipation end for heat management, and a conductive member for thermal transfer. This segmentation allows each component to perform its specific function independently, enabling continuous cooling while managing heat generation.
Solution Approach 2:
A conductive member is introduced as an intermediary between the refrigeration apparatus and the palm. This conductive member transfers cold heat from the refrigeration apparatus to the palm, improving cooling effect. Simultaneously, a heat dissipation end acts as an intermediary to dissipate heat generated by the cold-hot semiconductor, preventing heat accumulation.
2Temperature
If a refrigeration apparatus is added to provide cooling effect, then palm cooling is improved, but heat generated by the cold-hot semiconductor needs to be dissipated
Solution Approach 1:
The heat generated by the cold-hot semiconductor, which is normally a harmful factor, is converted into a beneficial cooling effect. The heat dissipation end is designed to dissipate this heat through high-speed airflow, and the conductive member distributes this heat evenly, preventing localized heat accumulation while maintaining the refrigeration effect.
Solution Approach 2:
A heat dissipation end is introduced as an intermediary component between the cold-hot semiconductor and the environment. This heat dissipation end facilitates heat transfer from the semiconductor to the surrounding air through high-speed airflow, effectively managing the heat generated by the refrigeration apparatus.
3Temperature
If a heat dissipation mechanism is added to dissipate heat, then heat accumulation is prevented, but manufacturing cost increases
Solution Approach 1:
The heat dissipation end is designed to serve multiple functions: it dissipates heat from the cold-hot semiconductor, maintains the refrigeration effect, and can be integrated with the fan housing structure. This multi-functionality reduces the need for separate heat dissipation components, thereby controlling manufacturing costs while achieving effective heat management.
Solution Approach 2:
The heat dissipation end is merged with the fan housing and air duct structure. The air duct serves dual purposes: guiding airflow for cooling and facilitating heat dissipation from the cold-hot semiconductor. This merging of functions eliminates the need for additional dedicated heat dissipation mechanisms, reducing manufacturing complexity and cost.
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
Improves user experience by providing a cooling effect through palm refrigeration and effectively dissipates heat generated by the cold-hot semiconductor, reducing manufacturing costs and maintaining the fan's cooling performance.
Implementation Method 1
the refrigeration end of the refrigeration apparatus is connected to the conductive member in a heat conduction manner
Implementation Method 2
heat generated by a cold-hot semiconductor can be dissipated in time by using a high-speed airflow passing through the air duct
Data Source
AI summary
A hand-held refrigeration fan is provided, including a fan head and a hand-held portion. The fan head includes a fan housing, an air duct is formed in the fan housing, and the fan housing is provided with a connecting through hole penetrating through inner and outer sides of the air duct. A conductive member is arranged on an outer surface of the hand-held portion, a refrigeration apparatus is arranged in the hand-held portion, a refrigeration end of the refrigeration apparatus is connected to the conductive member in a heat conduction manner, and a heat dissipation end of the refrigeration apparatus communicates with the air duct after penetrating through the connecting through hole. A conductive sheet is arranged on an outer surface of a hand-held portion, and a refrigeration effect is achieved by the conductive sheet through the operation of a refrigeration apparatus.