Rotating Locking Part Memory Card Connector Height Reduction
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Solution Overview
Problem
The existing DDR3 memory card connectors have a high total height due to the wedging trough, which prevents the holding portion from rotating towards the plug slot, leading to inadequate and unstable soldering, increased packaging and shipping costs, and difficulty in installing additional rows on motherboards.
Innovation Solution
A memory card connector design with pivoting bases and locking parts that rotate towards the plug slot, reducing the total height and allowing closer proximity of the heater during soldering, while maintaining secure card retention and preventing damage to other elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wedging trough prevents the holding portion from rotating in the direction facing to the plug slot, then the locking device can securely hold the memory card, but the total height of the memory card connector increases
Solution Approach 1:
The locking part is designed to be rotatable between a horizontal locking state and a vertical non-locking state. The pivoting base allows the locking part to dynamically change its position and orientation, enabling secure card retention when needed while reducing height when the card is removed, thus resolving the contradiction between locking reliability and total height.
2Reliability
If the total height of the memory card connector increases, then the locking device can effectively secure the memory card, but the required space for packaging and shipping increases
Solution Approach 1:
The rotatable locking part dynamically adjusts its height profile - extending vertically when locking the card and folding down when the card is removed. This dynamic behavior reduces the overall packageable height of the connector, decreasing packaging and shipping volume while maintaining effective card retention during operation.
3Reliability
If the total height of the memory card connector increases, then the locking mechanism can function properly, but the gap between connectors on the mother board increases
Solution Approach 1:
The locking part's ability to rotate between horizontal and vertical states allows the connector to have a compact vertical profile when not in use. This reduces the vertical space requirement on the mother board, enabling tighter spacing between multiple connectors and improving area utilization while maintaining full locking functionality when cards are installed.
4Reliability
If the heater is located far away from the mother board due to increased connector height, then the locking device can secure the card, but the soldering temperature becomes inadequate and unstable
Solution Approach 1:
By enabling the locking part to rotate to a vertical position when the memory card is removed, the connector's overall height is reduced. This allows the heater in the reflow oven to be positioned closer to the mother board during soldering, ensuring adequate and stable soldering temperature while maintaining reliable card holding capability when the card is installed.
Data Source
AI summary
A memory card connector is used for being plugged with a memory card. The memory card connector includes an insulating body having a plugging slot and two pivoting bases, two locking parts, and a plurality of conducting pins received in the insulating body. The memory card is plugged into the plugging slot. The two pivoting bases are respectively located at two sides of the insulating body. The pivoting base that is close to the plugging slot has a blocking portion. The two locking parts are respectively pivoted with the two pivoting bases for holding the memory card and can be entered by the blocking portion. The total height of the memory card connector is reduced. The required space for packaging and shipping the memory card connector is reduced to lower the shipping cost.