Sliding Card Connector Structure for Stable Insertion and Ejection
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Solution Overview
Problem
Conventional card connectors fail to ensure stable insertion and ejection of electronic cards due to improper direction of force or operation, leading to skew, collision, or abrasion, and unstable electrical connections.
Innovation Solution
A card connector design featuring a plugging space with sliding members and elastic members that guide and restrain the card, along with a shielding housing with constraint arms, to maintain balance and correct contact, preventing deviation and ensuring stable insertion and ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic card is inserted directly into the card connector without guidance, then the insertion process is simple, but the electronic card may deviate or skew due to improper direction of force, causing collision or push between the card and terminal set
Solution Approach 1:
The patent introduces a card guide structure as an intermediary component between the card and the connector body. This guide includes guiding surfaces that redirect the card's insertion path, ensuring it aligns properly with the terminal set. The guide acts as a mediator that transforms improper insertion forces into correct alignment, preventing collision while maintaining simple operation.
Solution Approach 2:
The card guide structure performs preliminary alignment action before the card contacts the terminal set. The guiding surfaces pre-position the card in the correct orientation and location, ensuring that the insertion force is properly directed from the outset. This preliminary guidance prevents deviation and skew before they can occur during the main insertion process.
2Device complexity
If the card connector uses a fixed terminal set structure, then the structure is simple and stable, but the terminal set may skew or twist when the card is inserted with improper force
Solution Approach 1:
The patent divides the connector into separate functional segments: a fixed connector body, a movable card guide structure, and a protected terminal set. The card guide can move independently to absorb insertion forces, while the terminal set remains fixed and protected. This segmentation allows the simple fixed structure to coexist with the stability needed to prevent terminal skewing.
Solution Approach 2:
The card guide structure serves as a cushioning element that absorbs and redistributes insertion forces before they reach the terminal set. It provides beforehand protection by taking the impact of improper insertion forces and converting them into controlled movement of the guide itself, preventing these forces from causing skew or twist to the terminal set.
3Productivity
If the card is inserted without guidance, then the insertion process is quick, but the contacts of the electronic card may be scratched or abraded
Solution Approach 1:
The card guide structure acts as an intermediary that interfaces between the card and the connector body. Its guiding surfaces provide a controlled contact path that directs the card smoothly into position, preventing direct contact between the card edges and the connector walls that would cause abrasion. The mediator structure protects the card contacts from harmful friction.
4Device complexity
If the card connector does not have locating mechanisms, then the structure is simpler, but the electronic card may loosen or become unstable in the plugging space
Solution Approach 1:
The patent applies locating features at specific critical locations within the plugging space rather than throughout the entire structure. The card guide includes localized guiding surfaces and positioning elements that provide precise alignment and retention only where needed for card stability. This localized approach ensures reliability without adding unnecessary complexity to the overall structure.
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
The design allows for stable and balanced insertion and ejection of electronic cards, preventing skew and abrasion, and maintaining a reliable electrical connection by using sliding mechanisms and constraint arms to secure the card in place.
Implementation Method 1
elastic members are abutted between sides of the two sliding members and two opposite sidewalls of the plugging space
Data Source
AI summary
In a card connector, a main body has a plugging space formed therein and used to locate terminals of a terminal set, two sliding members of a sliding mechanism are movably disposed on two sides of the terminal set in the plugging space, respectively, and each sliding member has a supporting part protruded on a side thereof and extended into the plugging space, and elastic members are abutted between sides of the two sliding members and two opposite sidewalls of the plugging space, respectively; a terminal of a guiding rod is slid along a guiding groove, and an other terminal of the guiding rod is inserted through the main body; a push plate of a shielding housing is abutted with the guiding rod, so that a preset electronic card can be stably inserted into or ejected out of the plugging space through the two sliding members.