Air Blower Dual-Cavity Structure for Heating Component Cooling
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Solution Overview
Problem
Hair dryers have low heat dissipation efficiency, leading to overheating and safety hazards, as well as reduced service life due to heat accumulation in the heating component.
Innovation Solution
The air cavity is divided into two sub-cavities with a ventilation area connecting them, allowing air to circulate and exchange heat with the heating component twice, enhancing heat dissipation through turbulent airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the heating component operates continuously to dry long hair, then the drying function is achieved, but heat accumulates in the hair dryer causing overheating and safety hazards
Solution Approach 1:
The air cavity is segmented into a first sub-cavity and a second sub-cavity by the heating component. The first sub-cavity receives ambient air for heating, while the second sub-cavity discharges heated air. This segmentation allows separate zones for heat input and heat discharge, preventing heat accumulation in a single space and enabling continuous operation without overheating.
Solution Approach 2:
Air acts as an intermediary medium that transfers heat from the heating component to the external environment. The air flows through the first sub-cavity, absorbs heat from the heating component, then exits through the second sub-cavity. This intermediary mechanism allows the heating component to dissipate heat continuously through the air stream, preventing temperature buildup.
2Productivity
If the heating component operates at high temperature, then drying efficiency is improved, but the service life of the hair dryer is reduced due to overheating
Solution Approach 1:
The harmful heat accumulation is extracted from the system by introducing a continuous air flow that carries heat away from the heating component. The air inlet area draws in ambient air, which passes through the heated region and exits through the air outlet area, effectively removing excess heat from the housing and extending the service life of the heating component.
3Device complexity
If a single air cavity is used, then the structure is simple, but heat dissipation efficiency is low leading to heat accumulation
Solution Approach 1:
The single air cavity is divided into two functional sub-cavities: a first sub-cavity for air intake and heating, and a second sub-cavity for heated air discharge. This segmentation creates distinct zones for heat addition and heat removal, significantly improving heat dissipation efficiency while maintaining relatively simple overall structure.
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 heat dissipation efficiency, reduces the risk of overheating, and prolongs the service life of the hair dryer by effectively dissipating heat from the heating component.
Implementation Method 1
The heating component is configured to heat the air
Implementation Method 2
air to circulate and exchange heat with the heating component
Implementation Method 3
enhancing heat dissipation through turbulent airflow
Data Source
AI summary
An air blower and a vertical hair dryer are provided. The air blower includes a housing and a heating component. An air cavity, an air inlet area and an air outlet area are formed inside the housing, and the air inlet area and the air outlet area are in communication with the air cavity. The heating component is arranged in the air cavity, and the heating component separates the air cavity into a first sub-cavity and a second sub-cavity. The first sub-cavity is in communication with the air inlet area, and the second sub-cavity is in communication with the air outlet area. At least one of the heating component or the housing is provided with a ventilation area, and the ventilation area is in communication with the first sub-cavity and the second sub-cavity. The heating component is arranged in the first sub-cavity and the second sub-cavity.