Supporting an electronic display in a display case door
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Solution Overview
Problem
Existing refrigerated enclosure doors face challenges in maintaining electronic displays, including difficulty in replacement, structural integrity, and safety during installation and maintenance, due to complex mounting systems that require multiple people and can lead to uneven shear loading and potential damage.
Innovation Solution
A support system using a pin and hanger bracket assembly that allows for easy installation and removal of electronic displays without cutting or notching the door frame, utilizing a support plate and hanger bracket with a slot to accept the pin, enabling secure alignment and support of the display assembly, and incorporating a spacer plate and fasteners for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a complex mounting system is used to secure the electronic display, then the display is firmly fixed, but the installation and maintenance become difficult and require multiple people
Solution Approach 1:
The mounting system is divided into separate functional components: a support plate attached to the door frame, a hanger bracket attached to the display, and a pin connecting them. This segmentation allows the display to be securely mounted while enabling easy installation and removal by single personnel.
Solution Approach 2:
The pin-and-slot connection introduces dynamic capability to the mounting system. The slot in the hanger bracket allows the pin to be easily inserted and removed, transforming a static complex mounting system into a dynamic one that can be quickly assembled and disassembled while maintaining firm fixation during operation.
2Strength
If the electronic display is firmly fixed using existing methods, then the display is securely mounted, but uneven shear loading occurs causing potential damage
Solution Approach 1:
The mounting load is segmented and distributed through multiple connection points: the support plate distributes weight across the door frame, the hanger bracket distributes it across the display housing, and the pin provides a focused connection point. This segmentation prevents concentration of stress that could cause damage.
Solution Approach 2:
The pin acts as an intermediary element between the support plate and hanger bracket, providing a simple mechanical connection that naturally aligns and distributes forces. The slot in the hanger bracket allows for self-alignment, ensuring even force distribution and reducing shear loading risks.
3Stability of the object's composition
If multiple fasteners are used to secure the support plate, then the mounting is stable, but the installation process becomes more complex
Solution Approach 1:
The fastening system is segmented into two independent stages: first, the support plate is secured to the door frame using multiple fasteners for stability; second, the hanger bracket is attached to the display and connected via a simple pin insertion. This segmentation simplifies the overall process by separating complex fastening from simple connection.
Solution Approach 2:
The support plate is pre-attached to the door frame with multiple fasteners before the display is installed. This preliminary action ensures stable mounting infrastructure is in place, allowing the final display attachment to be simplified to just inserting the pin into the slot, reducing overall complexity.
Data Source
AI summary
A display case door having an insulated panel assembly, a support plate, an electronic display assembly, and a hanger bracket. The insulated panel assembly has a door frame that extends about and is coupled to the insulated panel assembly. The support plate is coupled to a top rail of the door frame and has a least one pin. The electronic display assembly is coupled to the door frame. The hanger bracket is coupled to a top surface of the electronic display assembly and has a slot sized to accept the pin. The electronic display assembly is at least partially supported in the door frame by the support plate and the hanger bracket.