Ventilation panel and oven
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Solution Overview
Problem
Existing oven ventilation systems are unable to efficiently and cost-effectively suck air out of the door ventilation duct into the ventilation panel, resulting in insufficient air current control and power.
Innovation Solution
A ventilation panel with separated subsidiary air inlet apertures, controlled by a dividing wall, allows adjustable suction power by varying the fresh air mixture and gap width, enhancing air current management through the oven.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If air is sucked out of the door ventilation duct into the ventilation panel, then ventilation efficiency is improved, but suction power and air current control are insufficient
Solution Approach 1:
The ventilation panel is divided into multiple independent air inlet apertures (first and second subsidiary air inlet apertures) that are separated by a dividing wall. This segmentation allows different suction powers to be applied to different regions, enabling the system to simultaneously achieve high ventilation efficiency and sufficient suction power by optimizing each aperture's air intake independently.
2Productivity
If suction power is increased to improve air current control, then ventilation efficiency improves, but cost increases
Solution Approach 1:
The dividing wall creates local quality differences by separating the air inlet apertures into distinct zones with different suction characteristics. The first subsidiary air inlet aperture can be optimized for high suction power areas while the second can be optimized for cost-effective lower power areas, allowing the overall system to achieve good air current control without uniformly high costs across all components.
3Device complexity
If a single air inlet aperture is used, then device complexity is reduced, but air current control precision deteriorates
Solution Approach 1:
The ventilation panel is segmented into multiple air inlet apertures separated by a dividing wall, which allows independent control and optimization of air currents for different purposes (e.g., door ventilation duct suction versus general ventilation). This segmentation provides the precision needed for controlled air currents while keeping each individual aperture relatively simple in design.
Solution Approach 2:
The dividing wall acts as an intermediary element between the different air inlet apertures, enabling independent air current paths and control mechanisms for each aperture. This intermediary structure allows precise control of air currents to different destinations without requiring complex integrated control systems.
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
This solution enables cost-effective and efficient air current setup within the oven, allowing for adjustable suction levels and effective cooling of air, improving ventilation efficiency and component protection.
Implementation Method 1
a gap through the dividing wall for the passage of fresh air to the second subsidiary ventilation duct can be created between said dividing wall and another part of the oven
Implementation Method 2
achieve cooling of the warm air sucked out of the door ventilation duct, which is adjustable via the fresh air feed
Implementation Method 3
the oven has a fan, in particular a radial-flow fan, for suction and expelling of the air
Data Source
AI summary
A ventilation panel for a ventilation system of an oven with an air inlet aperture has a first subsidiary air inlet aperture and a second subsidiary air inlet aperture, which are separated from each other by a dividing wall at least partially in the air entry area. The oven has a housing ventilation duct, which directs air at least partially around a muffle, where the housing ventilation duct is at least partially divided into a first and a second subsidiary ventilation duct, where entry of the air to the subsidiary ventilation ducts takes place by means of a shared ventilation panel, and a door ventilation duct, which directs air through an oven door, where a fresh air feed leads to the ventilation panel, and where, when the oven door is closed, an air outlet aperture of the door ventilation duct of the ventilation panel of the housing ventilation duct lies opposite to and at a distance from an area of the second subsidiary ventilation duct, the ventilation panel having a first subsidiary air inlet aperture, which is allocated to the first subsidiary ventilation duct, and a second subsidiary air inlet aperture, which is allocated to the second subsidiary ventilation duct, where the subsidiary air inlet apertures are at least partially separated from each other by means of a dividing wall in the air entry area.