Induction Hob Air Guide Layout for Cooling and EMI Shielding
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Solution Overview
Problem
Existing hob systems face challenges in effectively cooling the mounting plate and induction heating units, leading to mechanical and thermal stresses, potential performance restrictions, and reduced service life due to inadequate cooling solutions that may interfere with electronic components.
Innovation Solution
A hob system design featuring a mounting plate with induction heating units at a distance, a blower unit for cooling air flow, and an air guiding unit that directs the cooling air between the mounting plate and induction heating units, providing improved cooling while maintaining electromagnetic shielding and independent cooling of electronics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling air flow is provided for the induction heating unit, then cooling efficiency is improved, but electromagnetic shielding may be blocked
Solution Approach 1:
The patent introduces an air guiding unit as an intermediary component that channels cooling air through a defined path between the mounting plate and induction heating unit. This mediator ensures that cooling air flows effectively while maintaining electromagnetic shielding integrity, as the air guiding unit is designed to allow air passage without blocking electromagnetic fields.
Solution Approach 2:
The cooling system is segmented into distinct functional zones: the air guiding unit directs cooling air through a specific channel, separating the cooling function from the electromagnetic shielding function. This segmentation allows independent optimization of both cooling efficiency and electromagnetic shielding without interference.
2Temperature
If cooling air flow is directed between mounting plate and induction heating unit, then mounting plate cooling is improved, but device complexity increases
Solution Approach 1:
The air guiding unit serves multiple functions simultaneously: it directs cooling air flow, maintains electromagnetic shielding, and provides structural support. By combining these functions into a single component, the system achieves improved mounting plate cooling without proportionally increasing device complexity.
Solution Approach 2:
The patent merges the air guiding function with the electromagnetic shielding function into a single integrated structure. The air guiding unit both channels cooling air and provides electromagnetic shielding, reducing the total number of components and simplifying the overall cooling system design.
3Productivity
If high power operation is maintained, then productivity is improved, but thermal stress increases
Solution Approach 1:
The cooling air flow is directed preliminarily to the mounting plate and induction heating unit before excessive heat accumulation occurs. The air guiding unit establishes a continuous cooling path that prevents thermal stress buildup, enabling sustained high-power operation without compromising structural integrity.
Solution Approach 2:
The patent implements continuous cooling air flow through the air guiding unit during high-power operation. This continuous cooling action maintains thermal balance throughout the operational period, allowing the system to sustain high productivity levels without intermittent thermal stress damage.
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 configuration enhances cooling efficiency, reduces mechanical and thermal stresses, allows for high-power operation over extended periods, extends component lifespan, and prevents performance limitations due to excessive temperatures, thereby improving customer satisfaction and system reliability.
Implementation Method 1
a blower unit (16a, 16b), by means of which a cooling air flow (18a, 18b) is provided, and with an air guide unit (20a, 20b), by means of which the cooling air flow (18a, 18b) is directed
Implementation Method 2
at least one induction heating unit (14a, 14b), which is arranged at a distance from the mounting plate (12a, 12b)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a cooktop system (10a; 10b) comprising a base plate (12a; 12b), at least one induction heating unit (14a; 14b) spaced apart from the base plate (12a; 12b), at least one fan unit (16a; 16b) for providing a cooling airflow (18a; 18b), and an air guide unit (20a; 20b) designed to direct the cooling airflow (18a; 18b) during operation. It is proposed that the air guide unit (20a; 20b) directs the cooling airflow (18a; 18b) between the base plate (12a; 12b) and the induction heating unit (14a; 14b) during operation.