Removable Electronic Cover Structure With Screwless Spring-Leaf Release
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Solution Overview
Problem
Existing electronic device case structures require screws for attaching removable covers, increasing assembly and disassembly complexity and cost.
Innovation Solution
A case structure with a main case and cover that uses an elastic driving element, including a spring leaf structure and fastening elements, allowing the cover to be fixed and detached without screws through elastic deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw is used to fix the cover to the case structure, then the cover is securely attached, but the assembly and disassembly complexity increases and cost increases
Solution Approach 1:
The patent removes the screw from the assembly, extracting the fastening function from a separate component and integrating it into the elastic driving element itself. The elastic driving element's fastening portion directly engages with the cover's fastening portion, eliminating the need for separate screws and reducing assembly complexity while maintaining secure attachment.
Solution Approach 2:
The patent merges the fastening function with the elastic driving element. The fastening portion of the elastic driving element is integrated into the same component that provides the elastic restoring force, combining multiple functions (fastening and elastic recovery) into a single element, thereby reducing the total number of components and simplifying assembly.
2Reliability
If a screw is used to fix the cover to the case structure, then the cover is securely attached, but the assembly and disassembly time increases
Solution Approach 1:
By removing the screw and its associated fastening mechanism, the patent eliminates the time-consuming steps of screw insertion and fastener engagement. The cover can be attached simply by pressing it onto the elastic driving element, significantly reducing assembly and disassembly time while maintaining secure attachment through the elastic restoring force.
Solution Approach 2:
The elastic driving element performs the fastening function automatically through its elastic restoring force. When the cover is pressed onto the elastic driving element, the elastic portion deforms and automatically engages with the cover's fastening portion, providing self-fastening without requiring manual screw tightening or additional fastening operations.
3Reliability
If a screw is used to fix the cover to the case structure, then the cover is securely attached, but the cost increases
Solution Approach 1:
The patent combines the fastening function with the elastic driving element, eliminating the need for separate screws and fasteners. This reduction in component count directly lowers manufacturing costs for materials and assembly operations, while the integrated design maintains secure cover attachment through the elastic restoring force mechanism.
Solution Approach 2:
By extracting the screw from the assembly and integrating its fastening function into the elastic driving element, the patent reduces the total number of components that need to be manufactured, stored, and assembled. This extraction of the separate fastening component directly reduces manufacturing cost while maintaining the necessary attachment security.
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
Enables easy assembly and disassembly of the cover without additional tools, enhancing usability and reducing costs by eliminating the need for screws.
Implementation Method 1
the spring leaf structure is pressed by the column portion to generate an elastic deformation
Implementation Method 2
the cover may detach from the main case with an elastic restoring force exerted by the spring leaf structure on the column portion
Data Source
AI summary
A case structure of an electronic device includes a main case, a cover, and an elastic driving element. The main case includes a hollow portion, and a spring leaf structure protruding inwardly from a side of the hollow portion. The cover for covering the hollow portion includes a fastening portion, at least one fixing element, and a column portion. The elastic driving element is movably combined with the main case and includes a corresponding fastening portion and an operating portion. When the cover is combined with the main case, the spring leaf structure is pressed by the column portion to generate an elastic deformation; when the operating portion is moved to let the corresponding fastening portion detach from the fastening portion, the cover may detach from the main case with an elastic restoring force exerted by the spring leaf structure on the column portion.