Cooktop Coating Thickness Layout for Heat and Display Balance
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Solution Overview
Problem
Existing hob plate designs lack design freedom, comfort, durability, and ease of maintenance, particularly in terms of surface texture and coating distribution, which affects user experience and longevity.
Innovation Solution
A hob plate device with a coating structure that varies in thickness across its upper surface, featuring a thicker first partial area and a thinner second partial area, providing a ceramic appearance, reduced risk of spalling, improved comfort through surface continuity, and enhanced cleaning efficiency, while allowing for better infrared transparency and protection of display elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a uniform coating is applied across the entire cooktop surface, then the manufacturing process is simple and cost-effective, but the design freedom and user comfort are limited
Solution Approach 1:
The patent applies a variable thickness coating where the first region has a greater coating thickness (10-50 μm) than the second region (5-20 μm). This local differentiation allows the thicker first region to provide enhanced durability and ceramic appearance where needed, while the thinner second region maintains good thermal contact with the heating element for efficient heat transfer. The coating structure thus has different properties in different locations to optimize both design freedom and functional performance.
2Reliability
If a thick coating is applied to the entire cooktop surface, then durability and ceramic appearance are improved, but heat transfer efficiency decreases and display element visibility is reduced
Solution Approach 1:
The patent differentiates the coating thickness between two regions: the first region has a greater thickness (10-50 μm) to provide enhanced durability, scratch resistance, and ceramic appearance, while the second region has a thinner coating (5-20 μm) to ensure good thermal contact with the heating element for efficient heat transfer. This local quality differentiation resolves the contradiction between durability and heating efficiency.
Solution Approach 2:
The cooktop surface is segmented into two distinct regions with different coating thicknesses. The first region (central cooking area) receives a thicker coating for durability, while the second region (peripheral area with display elements) receives a thinner coating. This segmentation allows each region to be optimized for its specific function, resolving the contradiction between durability and energy efficiency.
3Adaptability or versatility
If recesses are created in the coating structure for design purposes, then design freedom and haptics are improved, but the risk of chipping and germ accumulation increases
Solution Approach 1:
The patent specifies that the transition between the first and second regions should have a rounded or curved profile rather than sharp edges or recesses. This curvature eliminates sharp corners where germs could accumulate and reduces the risk of chipping at edges, while still providing design freedom through the variable thickness profile and rounded transitions between regions.
4Shape
If the coating thickness is increased to improve ceramic appearance and durability, then the aesthetic quality and protection are enhanced, but the infrared transparency and visibility of display elements are reduced
Solution Approach 1:
The patent applies a thicker coating (10-50 μm) in the first region to achieve the desired ceramic appearance and durability, while applying a thinner coating (5-20 μm) in the second region where display elements are located. The reduced thickness in the second region allows better transmission of light from display elements and improved infrared transparency, resolving the contradiction between aesthetic quality and visibility.
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 achieves a high degree of design freedom, improved user comfort, reduced germ deposition, enhanced durability, and efficient cleaning, along with improved heating efficiency and visibility of display elements.
Implementation Method 1
the coating structure has a greater thickness in at least a first sub-region of the top surface than in a second sub-region of the top surface
Implementation Method 2
Specifically, the coating structure has at least a substantially identical base color in at least the two sub-areas, which is intended, in particular, to create a ceramic appearance
Implementation Method 3
energy is transferred from the heating element to the cooking utensil, preferably through the plate unit, in particular in the form of electromagnetic radiation
Implementation Method 4
The coating structure has an opacity of at least 40%, in particular at least 70%, advantageously at least 90%, and preferably at least 95%, at least in the first sub-area
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The hob plate device (12) has a coating structure (16) that is provided on an upper surface (15) of a hob plate unit (14). The thickness of the coating structure in a first portion (18) of the upper surface of the hob plate unit is set larger than the thickness of the coating structure in a second portion (20) of the upper surface of the hob plate unit. Independent claims are included for the following: (1) a hob plate; and (2) a method for manufacturing a hob plate device.