Multi-Intake Air Channel Layout for Cleaner Kitchen Appliance Cooling
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Solution Overview
Problem
Kitchen appliances face issues with heat exchange impairment due to contamination from moisture and grease in the air, leading to reduced reliability and maintenance needs.
Innovation Solution
A kitchen appliance design featuring a housing with multiple intake openings and a guiding element that allows for variable air flow direction, enabling selective intake from less contaminated areas, potentially omitting the need for filters and improving air flow adaptation for better heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air is sucked in from the environment for cooling, then heat dissipation is improved, but the functional component is exposed to moisture and grease contamination that damages surfaces and impairs heat exchange
Solution Approach 1:
The air intake system is segmented into multiple separate intake openings positioned at different locations and orientations. This allows the cooling system to selectively draw air from different environmental zones, choosing paths less contaminated by moisture and grease while maintaining effective heat dissipation from the functional component.
Solution Approach 2:
Different intake openings are positioned to access air with different quality characteristics. By directing air intake toward areas with better air quality (less contamination) while maintaining adequate cooling flow, the system achieves local optimization of air quality without sacrificing overall heat dissipation performance.
2Object-affected harmful factors
If a filter is added to protect against contamination, then component protection is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The contamination protection function is extracted from the cooling air path by using separate, dedicated intake openings positioned in cleaner environmental zones. This eliminates the need for filters within the cooling system, reducing complexity while still protecting the functional component from moisture and grease contamination.
Solution Approach 2:
The air intake openings serve as intermediary structures that selectively access different environmental zones. By positioning these openings in areas with better air quality, the system indirectly protects the functional component from contamination without requiring direct filtration of the cooling air.
3Temperature
If air intake openings are positioned to maximize cooling, then heat exchange is improved, but suction of warm air from the cooking area increases contamination
Solution Approach 1:
The air intake openings are positioned asymmetrically at different locations and orientations around the housing. This asymmetric arrangement allows the system to draw cooling air from various directions, selecting paths that avoid the warm, contaminated cooking area while maintaining effective heat exchange with the functional component.
Solution Approach 2:
The system dynamically adapts air intake patterns by utilizing multiple openings at different positions. Depending on operating conditions and environmental factors, the cooling system can effectively draw air from different intake openings, allowing it to avoid warm air suction from the cooking area while maintaining cooling efficiency.
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
Enhances the appliance's reliability and service life by improving air flow management, reducing maintenance, and ensuring effective heat dissipation, especially in areas like hobs or hotplates.
Implementation Method 1
a stream of air can be sucked in from an environment and guided to the component in order to absorb heat there and transport it out of the housing
Implementation Method 2
the functional component can generate waste heat that is to be dissipated. For this purpose, a stream of air can be sucked in from an environment and guided to the component in order to absorb heat there and transport it out of the housing
Data Source
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AI summary
The invention relates to a kitchen appliance comprising a housing, which encloses an inlet region and a functional region; and an air channel for conducting air from the inlet region into the functional region and from there to an exterior region. The inlet region according to the invention has a plurality of inlet openings for air from the exterior region and the inlet openings are designed to allow air in from different directions or to different locations. The invention furthermore relates to a guide element for selectively guiding air from the first and/or second inlet opening into the inlet region.