Ventilated Oven Layout for Independent Multi-Zone Temperature Control
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Solution Overview
Problem
Existing ovens lack the ability to simultaneously control multiple cooking systems effectively, particularly when cooking a variety of food types that require different temperature and heating methods, leading to inefficiencies and limitations in accommodating diverse cooking needs.
Innovation Solution
A multi-functional oven with three independent cooking systems, including a ceiling-mounted thermal resistance element, a refractory slab-based thermal resistance element, and a bottom-mounted circular heating system with a blower, along with advanced temperature measurement and control systems that allow for independent or simultaneous operation of these systems, ensuring precise temperature regulation and minimizing interference between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cooking systems are activated simultaneously in an oven, then the versatility and cooking capability are improved, but the temperature control precision deteriorates due to mutual interference between systems
Solution Approach 1:
The oven is divided into multiple independent cooking zones (ceiling zone, bottom zone, and refractory slab zone), each with its own heating element and temperature sensor. This segmentation allows each zone to be controlled independently, preventing temperature measurement interference when multiple systems operate simultaneously, while still providing versatile cooking capabilities through coordinated operation of all zones.
2Productivity
If a single oven is designed to accommodate multiple cooking types, then the device complexity increases, but the productivity and space utilization improve
Solution Approach 1:
The oven incorporates multiple heating systems (ceiling radiating element, bottom radiating element, and refractory slab with blower) within a single enclosure, allowing it to perform various cooking functions (baking, roasting, grilling, convection cooking) simultaneously or independently. This multi-functionality eliminates the need for multiple separate ovens, improving space utilization and productivity while the integrated control system manages the complexity through coordinated operation of all heating elements.
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
Enables perfect control over cooking temperatures, allowing for the preparation of a wide range of food types, including bread dough, pastries, and au gratin dishes, by ensuring that the temperature measurement of one system is not influenced by the others, even when used simultaneously, thus optimizing cooking performance and reducing the need for multiple ovens.
Implementation Method 1
a radiating element ( 13) arranged in the ceiling or in the vault (15) inside said enclosure (3)
Implementation Method 2
a radiating element (17) arranged in the lower part inside said enclosure (3), said radiating element (17) being arranged under a refractory slab (21)
Implementation Method 3
a blower member (25) which makes it possible to stir the air closed inside said enclosure (3)
Implementation Method 4
the inertia of the refractory slab has the advantage of guaranteeing good stability and uniformity of the temperature diffused
Data Source
Figure 1
AI summary
The oven (1) has a selector (29) with buttons (31, 32) to simultaneously/independently select cooking systems (7, 9, 11). The systems are formed of thermal resistors (13, 17, 23) arranged on a ceiling (15), below a refractory plate (21) and in a base (27) of an enclosure (3), respectively. A regulator (33) independently regulates and manages heating temperature of each selected system. Measuring units have temperature sensors to measure the temperatures of the corresponding resistors and are arranged in the enclosure to prevent disturbance between the selected systems during the measurement.