Cooking system comprising a ventilation apparatus
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Solution Overview
Problem
Downdraft hoods installed in kitchen islands for space-efficient ventilation have lower suction efficiency due to parallel air discharge, leading to increased fan size and noise, and require additional ducts, increasing construction costs and space utilization inefficiency.
Innovation Solution
A cooking system with a ventilation apparatus mounted at the edge of the kitchen island, featuring a swirl generating unit and sirocco fan, which creates a swirl to enhance suction efficiency without increasing fan size and eliminates the need for external ducts by integrating air filtration and discharge within the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a downdraft hood is mounted on the kitchen island, then space utilization efficiency is improved, but suction efficiency deteriorates due to parallel air discharge
Solution Approach 1:
The patent inverts the conventional downdraft configuration by mounting the ventilation apparatus at the edge of the kitchen island with the suction fan facing upward rather than downward. This inversion changes the air discharge direction from parallel to perpendicular relative to the cooking surface, thereby improving suction efficiency while maintaining space utilization efficiency.
2Productivity
If the capacity of the suction fan is increased to improve suction efficiency, then suction efficiency is improved, but noise increases
Solution Approach 1:
The patent changes the operational dimension of the suction fan from vertical (downward) to horizontal (upward/forward), allowing efficient pollutant capture without requiring excessive fan capacity. This dimensional change enables lower noise operation while maintaining high suction efficiency.
3Productivity
If the capacity of the suction fan is increased to improve suction efficiency, then suction efficiency is improved, but the size of the cooking system increases
Solution Approach 1:
By inverting the fan orientation and changing the discharge direction, the patent achieves high suction efficiency with a compact fan size. This eliminates the need for large-capacity fans, thereby maintaining a compact cooking system size.
4Reliability
If a duct is installed to discharge air or smoke, then air discharge function is improved, but construction costs increase and space utilization efficiency deteriorates
Solution Approach 1:
The patent merges the air discharge function directly into the kitchen island structure by mounting the ventilation apparatus at the edge. This integration eliminates the need for separate external ducts, reducing construction costs and maintaining space utilization efficiency while ensuring reliable air discharge.
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 system achieves improved suction efficiency and reduced noise while maintaining high space efficiency by generating a swirl to capture pollutants and odors, eliminating the need for external ducts and reducing construction costs.
Implementation Method 1
a swirl generating unit (200) to discharge air to generate a swirl
Data Source
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AI summary
A ventilation system that allows air to be directly discharged indoors, a the ventilation system including a body and a ventilation apparatus provided at an edge of an upper surface of the body and configured to take in polluted air generated during cooking, wherein the ventilation apparatus includes a suction port configured to take in the polluted air, a suction fan provided inside the body and configured to generate a suction force for the polluted air to be taken in through the suction port, a passage through which the air taken in through the suction port passes, at least one filter mounted inside the passage and configured to purify the air passing through the passage, and an exit port communicating with one end portion of the passage and configured to discharge the air purified by the at least one filter indoors.