Cooking oven
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Domestic electrical ovens face challenges in reducing energy consumption, simplifying control systems, and maintaining safety against overheating, as traditional cooling systems consume energy continuously and are complex and costly.
Innovation Solution
A control system that synchronizes the activation and deactivation of heating and ventilation fans based on temperature detection, ensuring ventilation only during heating cycles and eliminating energy consumption when heating is off, simplifying the control circuit by integrating heating and ventilation functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional continuous cooling system is used, then overheating safety is ensured, but energy consumption increases permanently
Solution Approach 1:
The cooling fan operates periodically synchronized with the heating element cycles, running only during heating phases and stopping during cooling phases. This periodic operation maintains thermal safety during heat generation while eliminating unnecessary energy consumption during cooling periods, directly resolving the contradiction between continuous safety and permanent energy use.
2Use of energy by moving object
If sophisticated control system is added, then energy optimization is improved, but device complexity and cost increase
Solution Approach 1:
The control functions for the heating element and cooling fan are merged into a single synchronized control mechanism. The fan's operation is directly coupled with the heating element's on/off cycles, eliminating the need for separate sophisticated control systems while achieving energy optimization through this simple integrated approach.
3Reliability
If cooling fan runs permanently, then thermal safety is maintained, but operational costs increase
Solution Approach 1:
The cooling fan operates periodically synchronized with the heating element cycles, running only during heating phases and stopping during cooling phases. This periodic operation maintains thermal safety during heat generation while eliminating unnecessary energy consumption during cooling periods, directly resolving the contradiction between continuous safety and permanent energy use.
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 approach effectively prevents overheating while reducing energy consumption and simplifies the control system, making it more robust and cost-effective by ensuring ventilation only accompanies heating cycles and ceases when heating stops.
Implementation Method 1
a temperature detector (12) associated with the cooking cavity (3)
Implementation Method 2
heating means (6, 6') placed in thermal exchange relationship with the cooking cavity (3)
Implementation Method 3
ventilating means placed in the housing (2) and having one or more electrical fans (7, 8; 7', 8') adapted to blow air
Data Source
Figure 1~3
Figure 4~6
Figure 7~8
AI summary
A cooking oven (1), comprising a housing (2) which forms a cooking cavity (3), heating means (6, 6') of the cooking cavity (3), ventilating means (7, 8, 7', 8') with at least a first electrical fan (7', 8') adapted to generate a first air stream (14) in a thermally sensitive area of the oven (1), as well as a control system (10) which automatically activates and deactivates the first fan (7', 8') together with the respective activation and deactivation of the heating means (6, 6').