Appliance mounting assembly
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Solution Overview
Problem
Existing appliance mounting assemblies face challenges in securely fastening ladder racks to mounting brackets within vacuum insulated appliances without compromising the vacuum seal, particularly in providing a reliable and cost-effective assembly method that maintains structural integrity and allows for easy servicing.
Innovation Solution
The proposed solution involves a mounting assembly with a self-clinching nut and coupling members that create an interference fit with the ladder rack, utilizing distal arms and coupling members that flare outward and inward to secure the ladder rack through a snap-fit connection and threaded fastener, ensuring stability and ease of assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional fastening methods are used to secure the ladder rack to the mounting bracket, then the structural integrity is improved, but the vacuum seal is compromised
Solution Approach 1:
The mounting bracket acts as an intermediary component between the ladder rack and the appliance panel, providing a fastening interface that does not directly penetrate the vacuum seal. The bracket includes an attachment body with an aperture that receives a fastener, allowing secure attachment while maintaining the integrity of the vacuum insulated panel.
Solution Approach 2:
The mounting assembly is divided into separate functional components: the mounting bracket that attaches to the panel, the self-clinching nut that provides secure fastening, and the ladder rack that carries shelves. This segmentation allows each component to be optimized for its specific function while working together to achieve both structural integrity and vacuum seal maintenance.
2Object-affected harmful factors
If complex assembly methods are used to maintain vacuum seal integrity, then the vacuum seal is preserved, but the assembly complexity increases
Solution Approach 1:
The self-clinching nut automatically secures itself to the mounting bracket when the ladder rack is installed. The nut includes an undercut that engages with the attachment body, creating a self-retaining connection that eliminates the need for complex assembly procedures or specialized tools while maintaining vacuum seal integrity.
Solution Approach 2:
The coupling members include distal ends that curve inward toward one another, creating an interference fit with the ladder rack. This geometric parameter change allows the components to self-align and self-secure during assembly, reducing assembly complexity while ensuring proper positioning and maintaining the vacuum seal.
3Stability of the object's composition
If secure fastening is achieved through interference fit, then the structural stability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The self-clinching nut undergoes a phase transition during installation where it deforms plastically to create a permanent interference fit with the mounting bracket. This controlled deformation allows the nut to expand and lock into place, providing secure fastening while accommodating normal manufacturing tolerances without requiring ultra-precise machining.
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 solution provides a secure, cost-effective, and efficient method to fasten the ladder rack to the mounting bracket, maintaining the vacuum seal and allowing for easy removal for servicing, while supporting various configurations and components within the appliance.
Implementation Method 1
The first and second sides define protrusions that engage the pair of coupling members in an interference fit
Implementation Method 2
A threaded fastener extends through the receiving hole and engages the self-clinching nut to mechanically fasten the ladder rack to the mounting bracket
Implementation Method 3
utilizing distal arms and coupling members that flare outward and inward to secure the ladder rack through a snap-fit connection
Data Source
AI summary
An appliance mounting assembly includes a mounting bracket with first and second distal arms that flare outward in opposing directions from an attachment body and couple to a panel. The mounting bracket includes a pair of coupling members that extend from the attachment body toward the panel surface and distal ends that curve inward toward one another. A self-clinching nut has an undercut, serrated clinching ring, and base. The undercut and the serrated clinching ring are disposed within an aperture defined by the attachment body. A ladder rack has first and second sides coupled via an attachment wall. The first and second sides define protrusions that engage the pair of coupling members in an interference fit. The attachment wall defines a receiving hole that aligns with the aperture assembled. A threaded fastener extends through the receiving hole and engages the self-clinching nut to fasten the ladder rack to the mounting bracket.