Grill Plate Assembly With Heat Distribution and Warp Compensation
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Solution Overview
Problem
Existing grilling devices require high effort for temperature distribution and stability, leading to uneven grilling and potential damage due to mechanical stiffness and warping from temperature differences.
Innovation Solution
Incorporating a heat distribution plate thermally connected to the heating means, with clamping bolts providing lateral bearing clearance to compensate for thermal stresses, and using a heat-conducting paste and spring-loaded clamping for improved heat transfer and stability, along with thermal insulation to minimize energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a mechanically stiff or massive grill plate is used to avoid warping, then warping resistance is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The grill plate is divided into a grill plate and a separate heat distribution plate that can move relative to each other. This segmentation allows the heat distribution plate to compensate for thermal expansion independently, preventing warping of the grill plate without requiring the grill plate itself to be massive or complex.
Solution Approach 2:
The clamping bolts are designed with lateral bearing clearance, changing the mechanical constraint parameter from rigid fixation to controlled movement. This allows the heat distribution plate to expand and contract freely in the lateral direction, compensating for thermal stresses without causing warping.
2Temperature
If electric heating resistors with control systems are used to achieve uniform temperature distribution, then temperature uniformity is improved, but device complexity increases
Solution Approach 1:
The patent replaces the electrical heating control system with a mechanical/thermal solution. Instead of using electric heating resistors with complex control systems, a heat distribution plate with high thermal conductivity is used to passively distribute heat uniformly across the grill plate through thermal conduction, simplifying the overall system.
Solution Approach 2:
The heat distribution plate acts as an intermediary between the heating means and the grill plate. It receives heat from the heating means and distributes it uniformly across the grill plate surface, achieving even temperature distribution without requiring complex control systems.
3Stability of the object's composition
If clamping bolts are rigidly fixed to prevent movement, then connection stability is improved, but thermal stress compensation is worsened
Solution Approach 1:
The clamping bolts are designed with selective constraint: they provide rigid axial clamping force to maintain connection stability, but allow lateral movement through bearing clearance to compensate for thermal expansion. This local differentiation of constraint quality resolves the contradiction between stability and thermal stress compensation.
Solution Approach 2:
The clamping connection is made dynamic rather than static. The lateral bearing clearance allows the heat distribution plate to move dynamically in response to thermal expansion and contraction, while the axial clamping force maintains stable connection. This dynamic design simultaneously achieves both connection stability and thermal stress compensation.
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 design achieves even and fast grilling with high temperature stability, preventing warping and allowing for a thinner, more stable, and cost-effective grill plate with improved handling and energy efficiency.
Implementation Method 1
the heating plate has a heat distribution plate 17 which is thermally connected to the heating means 13 and which adjoins the grill plate 2
Implementation Method 2
The heat transfer between the grill plate and the hot plate can be improved if a heat-conducting paste is provided between the grill plate and the hot plate
Implementation Method 3
at least one clamping bolt reaching through its respective fastening opening on the heating plate with a lateral bearing clearance at least to the heat distribution plate in order to compensate for thermal stresses
Implementation Method 4
the clamping elements fasten the heating plate to the grilling plate under spring loading
Data Source
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AI summary
The invention discloses a grill (1) having a griddle (2), which forms a grilling surface (3), having a tensioning means (7), which has a plurality of tensioning bolts (8) fixed to the griddle (2) and projecting from the rear of the latter and also has a plurality of tensioning elements (9) each interacting with a tensioning bolt (8), and having at least one hot plate (6, 60), which has an electric heating means (13) encapsulated in the hot plate (6, 60) and also has a plurality of fastening openings (12), wherein the tensioning bolts (8) project through the fastening openings (12) in the hot plate (6, 60) and, interacting in each case with the tensioning elements (9) provided on the rear of the hot plate (6, 60), fasten the hot plate (6, 60) on the griddle (2). In order to achieve a high level of stability and improved grilling results, it is proposed that the hot plate (6, 60) should have a heat-distributing plate (17) which is connected thermally to the heating means (13) and adjoins the griddle (2), wherein, in order to compensate for thermal stressing, at least one tensioning bolt (8) engages through its respective fastening opening (12) in the hot plate (6, 60) with an amount of lateral bearing play (18) at least in relation to the heat-distributing plate (17).