Cabinet Attachment Cover Assembly for Fast Screwless Mounting
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Solution Overview
Problem
Conventional cabinet structure assemblies for attaching image display devices to walls are time-consuming to assemble, require multiple steps, and can interfere with wiring boards due to the need for screws and separate covers, which complicates assembly and increases the prohibited region for control circuits.
Innovation Solution
A cabinet structure assembly featuring a hood-shaped enclosure with a sloped top component and engagement recess that allows for single-step attachment of a sheet metal attachment member, eliminating the need for screws and separate covers, while providing electrostatic shielding to reduce static discharge impact on wiring boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If attachment members are mounted at multiple places using screws, then the attachment strength is improved, but the assembly time and complexity increase significantly
Solution Approach 1:
The patent combines the attachment member and cover into a single integrated component. The attachment member includes an engagement protrusion that fits into an engagement recess on the cover, merging the attachment function and shielding function into one piece that can be installed in a single step without requiring separate screw fastening operations.
Solution Approach 2:
The patent extracts the screw fastening operation from the assembly process by using an interference fit between the engagement protrusion and engagement recess. The protrusion is formed with a smaller diameter than the recess opening, allowing the attachment member to be pushed into the cover through elastic deformation of the protrusion, eliminating the need for screws entirely.
2Volume of moving object
If attachment members are positioned closer to the wiring board to reduce device size, then the device compactness is improved, but electrostatic discharge risk to control circuits increases
Solution Approach 1:
The patent introduces a cover as an intermediary element between the attachment member and the wiring board. The cover acts as a physical barrier and electrostatic shield that isolates the attachment member (which may generate static electricity) from the control circuits on the wiring board, preventing direct electrostatic discharge while allowing the attachment member to be positioned close to the wiring board for compact device design.
3Object-affected harmful factors
If separate box-shaped covers are used to shield attachment members, then electrostatic protection is improved, but the number of parts and assembly complexity increase
Solution Approach 1:
The patent merges the attachment member and cover into a single integrated component. The attachment member includes an engagement protrusion that fits into an engagement recess on the cover, combining the attachment function and shielding function into one piece that can be installed in a single step without requiring separate screw fastening operations.
Solution Approach 2:
The attachment member serves multiple functions simultaneously: it provides mechanical attachment to the cabinet, acts as an electrostatic shield for the wiring board, and includes an engagement protrusion for secure mounting. This multi-functionality eliminates the need for separate components, reducing overall device complexity while maintaining electrostatic protection.
Data Source
AI summary
A cabinet structure assembly includes a cabinet, an attachment cover and an attachment member. The attachment cover includes a top wall portion. The top wall portion has an engagement recess with a first engagement face and an end part. The attachment member includes a base plate and a top plate. The top plate has a top face and an engagement protrusion that protrudes relative to the top face. The engagement protrusion has a second engagement face and a guide face. The second engagement face faces the first engagement face of the engagement recess. The guide face is arranged such that the guide face gradually deforms the end part of the top wall portion of the attachment cover away from the top face of the top plate upon installation of the attachment member relative to the attachment cover.