Movable Hook Retainer for Expansion Slot Stability
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Solution Overview
Problem
Existing electronic devices with expansion slots face insecure and unstable connections between expansion components and system boards, leading to potential disconnection or removal of components, especially when they are heavy or large, and the use of specific brackets or braces increases cost and complexity without universal compatibility.
Innovation Solution
A retainer with a movable hook that engages with both the system board and expansion components, providing a secure and stable connection by anchoring to the system board and pivotally locking onto the expansion component, allowing for universal fit across different types and sizes of components without the need for specific brackets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single point of attachment is used for expansion components, then the device complexity is reduced, but the connection stability deteriorates
Solution Approach 1:
The retainer is divided into a post portion that attaches to the system board and a hook portion that attaches to the expansion component. This segmentation allows the retainer to provide multiple attachment points (securing the expansion component both to the system board and preventing disconnection) while maintaining a relatively simple overall structure compared to traditional brackets
Solution Approach 2:
The hook portion is designed to be movable relative to the post portion, allowing it to flex and adapt during insertion and securing operations. This dynamic design enables the retainer to accommodate slight misalignments and provide secure retention without requiring complex adjustment mechanisms
2Reliability
If specific brackets or braces are used for each expansion component, then the connection stability is improved, but the device complexity and cost increase
Solution Approach 1:
The retainer is designed with a universal post portion that can be attached to the system board in a standardized manner, and a hook portion that can accommodate different types and sizes of expansion components. This universal design allows a single retainer type to serve multiple functions across different component configurations, eliminating the need for component-specific brackets while maintaining secure connections
3Reliability
If traditional brackets or braces are used to secure expansion components, then the connection stability is improved, but the manufacturing cost increases
Solution Approach 1:
The retainer merges the functions of the system board attachment mechanism and the expansion component securing mechanism into a single integrated component. The post portion attaches to the system board while the hook portion secures the expansion component, combining what would traditionally require separate brackets into one manufacturable part, thereby reducing overall manufacturing cost while maintaining connection stability
Data Source
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Figure 3~4A
Figure 4B
AI summary
In an example, a retainer may include a post to insertably engage with a post receptacle on a system board, and a hook hingeably attached to the post. The hook may be movable from a first position, lateral to a longitudinal axis of the post, to a second position aligned with the longitudinal axis of the post. In some implementations, the hook may be spaced from a top surface of the post when disposed in the second position so as to receive a portion of an expansion component between the hook and the post when the hook is disposed in the second position.