Range hood
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Solution Overview
Problem
Conventional range hoods are large and bulky, which can make kitchens appear smaller and impair their aesthetic appeal. Additionally, reducing the size of the suction portion to accommodate soundproof structures can impede smoke discharge and make it difficult to clean oil stains from soundproof materials.
Innovation Solution
A range hood design featuring a suction portion with a flow regulation plate and soundproof structures on the flow regulation plate, allowing for a compact size while maintaining effective smoke discharge and easy cleaning, by positioning the soundproof structures between the suction portion and the flow regulation plate, which is 110 mm or smaller in distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the size of the suction portion is reduced to make the range hood compact, then the overall size and bulkiness are reduced, but the space for placing soundproof structures is reduced or eliminated
Solution Approach 1:
The soundproof structure is positioned on the flow regulation plate in the suction portion, utilizing the vertical dimension between the flow regulation plate and the suction opening. This allows soundproofing functionality to be integrated into the compact suction portion without increasing horizontal footprint, effectively using the Z-dimension to resolve the space constraint.
2Object-affected harmful factors
If the soundproof structure is placed in the duct portion, then soundproofing is achieved, but the flow path for waste smoke is narrowed and discharge is impeded
Solution Approach 1:
The soundproof structure is extracted from the duct portion and relocated to the suction portion, specifically on the flow regulation plate. This separation ensures that the soundproofing function does not interfere with the duct flow path, maintaining smoke discharge efficiency while achieving noise reduction at the source.
3Object-affected harmful factors
If the soundproof structure is placed in the duct portion, then soundproofing is provided, but oil stains adhering to the soundproof structure become difficult to remove
Solution Approach 1:
The soundproof structure is extracted from the duct portion where oil stains accumulate and relocated to the suction portion's flow regulation plate. This new location is more accessible for cleaning and maintenance, allowing oil stains to be removed more easily while maintaining soundproofing performance.
4Productivity
If a flow regulation plate is added to regulate airflow, then smoke discharge efficiency is improved, but the distance constraint of 110 mm or smaller must be maintained
Solution Approach 1:
The distance between the suction portion and flow regulation plate is controlled within the parameter range of 110 mm or smaller. This parameter optimization ensures effective airflow regulation and smoke discharge efficiency while maintaining a compact overall structure that fits within kitchen space constraints.
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 achieves a compact range hood with high soundproof performance and easy removal of oil stains, ensuring effective smoke discharge without compromising airflow or increasing noise levels.
Implementation Method 1
a part of the oil trapping member (sound absorbing material) is disposed in an exhaust gas box
Data Source
AI summary
Provided is a range hood that is small, that can reliably provide the flow path for waste smoke, that has high soundproof performance, and that allows oil stains and the like to be easily removed. The range hood includes: a suction portion that has a suction opening and that sucks air from below in a vertical direction; a connection opening connected to the suction portion; a duct portion that conveys air sucked from the connection opening and discharges the air from a discharge opening to an outside; an air blowing mechanism that is disposed in the duct portion and that moves air in the duct portion to the discharge opening; and a flow regulation plate that is disposed in the suction opening of the suction portion or is disposed so as to cover a part of the suction opening. A distance between the suction portion and the flow regulation plate is 110 mm or smaller. The range hood has at least one soundproof structure on a surface of the flow regulation plate on the suction portion side between the flow regulation plate and the suction portion.