Ventilated Door Frame Assembly for Replaceable Display Covers
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Solution Overview
Problem
DOOH display assemblies are vulnerable to vandalism and environmental damage, leading to resource-intensive cover replacements that often require blocking off areas and transporting new covers, which can disrupt operations.
Innovation Solution
A door frame assembly with removable clips and fasteners allows for easy replacement of damaged covers, enabling on-site or off-site refurbishment of cover subassemblies, and includes vents for improved airflow and thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If covers are made resistant to weather and vandalism, then reliability is improved, but when damage occurs, replacement becomes more complex and time-consuming
Solution Approach 1:
The cover assembly is divided into modular components: the cover itself, the door frame, and removable clips with fasteners. This segmentation allows the cover to be replaced independently without replacing the entire assembly, reducing replacement complexity while maintaining durability through protective design
Solution Approach 2:
The design enables selective replacement of only the damaged cover component while recovering and reusing the intact door frame, clips, and fasteners. This reduces waste and replacement time, as the structural components can be retained and reused after the cover is replaced
2Ease of repair
If traditional cover replacement methods are used, then damaged covers are replaced, but resource-intensive efforts and operational disruption occur
Solution Approach 1:
The clips are designed to be removably attachable to the door frame, allowing dynamic assembly and disassembly. This enables quick removal of damaged covers and installation of replacement covers without permanent fastening, significantly reducing replacement time and operational disruption
Solution Approach 2:
The clips and fasteners are pre-configured on the door frame, allowing the cover to be quickly attached or detached as needed. This preliminary arrangement of components eliminates the need for complex installation procedures during replacement, reducing both time and resource requirements
3Use of energy by moving object
If vents are added to clips and door frame, then airflow and thermal management are improved, but device complexity increases
Solution Approach 1:
The clips serve multiple functions: they mechanically attach the cover to the door frame, provide structural support, and incorporate vents for airflow. This multi-functionality integrates thermal management into the existing structural components without adding separate ventilation systems, minimizing complexity increase
Data Source
AI summary
A door frame for a display assembly of a display unit is disclosed, along with related display assemblies, units, systems, and methods. The door frame includes a body which is at least substantially planar. At least one vent is provided at the body. A cover is installable to a lip of the door frame which extends at least substantially perpendicular to the body and from an end thereof. The door frame subassembly is replaceable, such as to repair damaged covers offsite. The door frame may be formed by extrusion and bending.