Induction Heating Unit Mounting for Thermal Expansion Control
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Solution Overview
Problem
Induction ovens with immovable induction heating units experience material stress and reduced heating performance due to thermal deformation, leading to inefficiencies and potential component wear.
Innovation Solution
A household appliance device with a fixing unit that allows restricted movement between the planar unit and the base unit, enabling flexibility and minimizing vibrations and component tension through a system of stop elements and insulating materials, thereby maintaining efficient heating performance and reducing downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the induction heating unit is fixed immovably to the muffle, then the structural stability is improved, but material stress increases and heating performance decreases due to thermal deformation
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a completely fixed connection to a semi-fixed connection that allows controlled movement. The fixing unit with stop elements enables the induction heating unit to move dynamically within defined limits, accommodating thermal expansion and contraction while maintaining structural stability during operation.
2Stability of the object's composition
If the induction heating unit is fixed immovably to the muffle, then the structural stability is improved, but heating performance decreases due to changed distance between components
Solution Approach 1:
The fixing unit with stop elements allows the induction heating unit to maintain optimal positioning dynamically. The stop elements define movement limits that ensure the heating unit remains at the correct distance from the muffle bottom, preserving heating performance while accommodating thermal deformation through controlled movement.
3Ease of manufacture
If the induction heating unit is fixed immovably to the muffle, then the assembly simplicity is improved, but component wear increases due to thermal stress
Solution Approach 1:
The fixing unit with stop elements creates a semi-fixed connection that balances assembly simplicity with component protection. The design allows straightforward assembly while the stop elements prevent excessive movement that would cause wear, thereby extending component durability without significantly complicating the assembly process.
4Stress or pressure
If restricted movement is allowed between planar unit and base unit, then material stress is reduced, but device complexity increases
Solution Approach 1:
The fixing unit is segmented into multiple stop elements distributed at different positions and orientations. This segmentation allows the complex function of restricting movement in multiple directions to be achieved through simple, discrete elements rather than a single complex mechanism, thereby reducing overall device complexity while effectively managing material stress.
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 solution enhances assembly, maintenance, and operational efficiency, improves durability, and ensures safe and reliable operation by allowing controlled movement and reducing thermal stress, thus maintaining performance and extending the lifespan of components.
Implementation Method 1
thermal deformation of the induction heating unit and the muffle
Data Source
AI summary
A household appliance device includes a base unit, a planar unit, and a fixing unit configured to at least partially fix the planar unit to the base unit such that in an assembled state the fixing unit allows restricted movement at least of a part of the planar unit relative to the base unit in a direction of movement at least essentially parallel to a main plane of extension of the planar unit.