Vent Trim Assembly with Support Ledge to Prevent Cooktop Edge Sagging
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Solution Overview
Problem
Conventional oven appliances experience deformation of the cooktop edges during the enameling process, leading to undesirable gaps or voids between the cooktop and adjacent components.
Innovation Solution
A vent trim assembly with a support ledge that locates and supports the rear edge of the cooktop, featuring a ramp portion to guide and a support portion to prevent sagging, thereby reducing or mitigating gaps and voids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the cooktop undergoes an enameling process to strengthen and protect it, then the cooktop gains strength and protection, but the edges of the cooktop deform and bow, creating gaps or voids between the cooktop and adjacent components
Solution Approach 1:
The vent trim assembly is designed with a support ledge that protrudes into the cooking chamber to contact and support the cooktop edge before the enameling process completes. This preliminary support prevents the edge from deforming during the thermal loading of enameling, maintaining manufacturing precision while still allowing the enameling to provide its strengthening function.
Solution Approach 2:
The vent trim assembly acts as an intermediary component between the cooktop and the cabinet structure. It provides mechanical support to the cooktop edge during the enameling process, preventing deformation without interfering with the enameling process itself. The support ledge serves as a mediator that transfers the load away from the vulnerable cooktop edge.
2Manufacturing precision
If the cooktop edge is supported during enameling to prevent deformation, then manufacturing precision is maintained, but the device complexity increases due to the additional vent trim assembly
Solution Approach 1:
The vent trim assembly is designed to serve multiple functions: it provides structural support to the cooktop during enameling, maintains the aesthetic appearance with its finished surface, and integrates with the existing venting system. By combining these functions into a single component, the design avoids adding excessive complexity while achieving the precision goal.
Solution Approach 2:
The support ledge function is merged into the vent trim assembly rather than being a separate component. This integration reduces the number of parts and assembly steps, thereby minimizing the increase in device complexity while still providing the necessary support to maintain manufacturing precision.
Data Source
AI summary
A cooking appliance may define a vertical direction, a lateral direction, and a transverse direction. The cooking appliance may include a cabinet. The cooking appliance may further include a cooktop provided above the cabinet. The cooking appliance may also include a cooktop extending between a front edge and a rear edge along the transverse direction. The rear edge may include a rear lip. The cooking appliance may also include a vent trim assembly in fluid communication with the cabinet. The vent trim assembly may include a lower vent trim positioned at the rear edge of the cooktop. The lower vent trim may include a support ledge positioned below the rear edge. The rear lip may be interfaced with the support ledge.


