Sliding Latch Assembly for Dense PCB Peripheral Retention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In modern information handling systems, the dense component layout on motherboards makes it difficult for users or technicians to physically engage and lock/unlock latches that secure peripheral devices to connectors.
Innovation Solution
A sliding latch assembly is mechanically coupled to the circuit board, featuring a guide base with a guiding feature, an axis with a driving feature, and a sliding latch with a guide and drive feature. This assembly constrains the sliding latch's movement in a linear direction and drives it to different positions relative to the connector using rotational positions of the axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional latches are used on densely populated motherboards, then peripheral devices can be securely retained, but the latches become difficult for users to physically engage and disengage
Solution Approach 1:
The patent replaces the traditional manual mechanical latch operation with an automated actuation system. A button or other actuating mechanism is provided that, when pressed, causes the latch to move between engaged and disengaged positions automatically. This substitution eliminates the need for users to manually manipulate small, difficult-to-reach latch components on densely populated motherboards.
Solution Approach 2:
The patent introduces an intermediary actuating mechanism (button or similar component) that mediates between the user and the latch system. Instead of directly manipulating the latch, the user presses the button which then triggers the latch to move. This intermediary makes the operation feasible for users while maintaining the secure retention function.
2Reliability
If manual dexterity is required to operate latches in dense component layouts, then precise control is achieved, but usability deteriorates and risk of accidental disconnection increases
Solution Approach 1:
The automated actuation system replaces manual latch manipulation, reducing the risk of accidental disconnection caused by difficult or imprecise manual operation. The button-actuated mechanism provides more consistent and reliable engagement/disengagement action compared to manual finger manipulation of small latch components.
Solution Approach 2:
The latch system is designed to serve itself through automated actuation. When the button is pressed, the latch automatically moves to the disengaged position without requiring the user to manually manipulate the latch components. This self-service mechanism improves both reliability and ease of operation.
Data Source
AI summary
A latch assembly may include a guide base configured to fixedly couple to a circuit board and having a guiding feature, an axis configured to rotatably couple to the circuit board and having a driving feature, and a sliding latch including a guide feature configured to mechanically engage with the guiding feature to constrain movement of the sliding latch in a linear direction relative to the circuit board and a drive feature configured to mechanically engage with the driving feature such that in a first rotational position of the axis relative to the circuit board, the driving feature mechanically drives the sliding latch to a first position relative to a connector of the circuit board and in a second rotational position of the axis relative to the circuit board, the driving feature mechanically drives the sliding latch to a second position relative to the connector.