Toolless Module Latch Using Cover-Actuated Motherboard Locking
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Solution Overview
Problem
Existing toolless attachment mechanisms for securing component modules to a motherboard are impractical in confined spaces, require continuous one-handed operation, and necessitate multiple steps, often needing specialized tools.
Innovation Solution
A rotatable latch mechanism on the component module, biased by a spring, engages a locking nut on the motherboard, secured by a top cover pin, allowing toolless and one-step assembly and disassembly without manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional screw-based attachment mechanism is used, then the component module is securely attached to the motherboard, but specialized tools are required for assembly and disassembly
Solution Approach 1:
The attachment mechanism is segmented into distinct functional components: a latch member with engagement and disengagement positions, a spring member providing biasing force, and a cover member with actuation features. This segmentation allows each component to perform its specific function independently, achieving tool-free operation while maintaining manageable complexity through modular design
Solution Approach 2:
The spring member automatically biases the latch member into the engagement position with the retention feature, and the cover member's movement automatically actuates the latch between engagement and disengagement positions. This self-service mechanism eliminates the need for external tools or manual manipulation of small fasteners, allowing users to quickly assemble and disassemble component modules
2Ease of operation
If a toolless latch mechanism is used, then assembly is simplified and tools are not required, but the mechanism requires continuous one-handed operation which is impractical in confined spaces
Solution Approach 1:
The spring member is pre-loaded to automatically bias the latch member into the engagement position, eliminating the need for manual positioning or adjustment during assembly. The cover member is designed with integrated actuation features that automatically trigger the latch transition when the cover is installed or removed, allowing the entire attachment or detachment process to be completed in a single continuous motion without requiring precise manual manipulation
Solution Approach 2:
The cover member acts as an intermediary that translates simple linear movement (installing or removing the cover) into the complex rotational or translational motion required to actuate the latch mechanism. This intermediary action allows users to perform the attachment operation without directly manipulating the latch itself, making the process practical for confined spaces and improving assembly speed
3Reliability
If multiple attachment steps are used, then secure attachment is achieved, but the assembly process becomes time-consuming and complex
Solution Approach 1:
The latch member, spring member, and cover member are combined into an integrated attachment system where the cover member's installation simultaneously performs multiple functions: it secures the component module to the motherboard, actuates the latch into the engagement position, and provides the final securing action. This merging of functions into a single operation achieves secure attachment while eliminating multiple separate steps, significantly reducing assembly time
Solution Approach 2:
The spring member provides a biasing force that automatically transitions the latch member from a neutral or disengaged state to the engagement position, ensuring secure attachment without requiring manual application of force or multiple tightening steps. This parameter change (from static to dynamically biased) maintains reliable attachment security while reducing the number of assembly steps required
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 secure, tool-free attachment and removal of component modules in constrained spaces with reduced steps, enhancing operational efficiency and flexibility.
Implementation Method 1
A spring member is mounted on the support plate between the latch member and the top support plate. The spring member is compressed when the latch member is rotated from the engagement position to the disengagement position.
Data Source
AI summary
A component module for a computer device with a toolless attachment mechanism is disclosed. The component module includes a support plate and a connector insertable in a slot on a motherboard of the computer device. A rotatable latch is mounted on the support plate. The rotatable latch has a locked position engaging a locking nut on the motherboard to fix the component module to the motherboard. The rotatable latch has a released position disengaging the locking nut to allow the modular component to be released from the motherboard. The rotatable latch engages a pin on a top cover installed over the motherboard to rotate the latch to the locked position.