Card Connector Positioning Set for Solder Alignment
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Solution Overview
Problem
Conventional card connectors face issues with maintaining the frontal and rear terminals and the welding portion on the same plane, leading to multiple invalid or faulty solderings, which affect the connection reliability between the connector and the circuit board.
Innovation Solution
The card connector incorporates a positioning set and side arms with movable and fixed arms, allowing for automatic adjustment of the angle between the conducting terminals and the circuit board, ensuring the welding end and the welding portion are aligned, enabling secure welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the fixed arm and welding portion are formed as one piece, then the manufacturing process is simplified, but the welding portion cannot maintain the same plane with the conducting terminals, causing faulty soldering
Solution Approach 1:
The fixed arm is divided into two separate components: the fixed arm itself and the welding portion. This segmentation allows the welding portion to be independently adjusted and positioned to maintain the same plane with the conducting terminals, while the fixed arm provides structural support. The separation resolves the contradiction by enabling precise positioning without complicating the overall manufacturing process.
2Reliability
If the conducting terminals have high density, then the electrical connection capability is improved, but the welding portion cannot maintain alignment with the terminals, causing multiple invalid soldering attempts
Solution Approach 1:
The welding portion is designed with dynamic adjustment capability, allowing it to move and adapt its position during the assembly process. This dynamic feature enables the welding portion to automatically align with the high-density conducting terminals, ensuring proper soldering alignment while maintaining the terminal density required for reliable electrical connection.
Solution Approach 2:
The welding portion acts as an intermediary element between the fixed arm and the conducting terminals. It provides a flexible connection point that can be precisely positioned to match the high-density terminal layout, facilitating reliable soldering without requiring the terminals to be spaced farther apart.
3Stability of the object's composition
If the card connector is rigidly fixed, then the structural stability is improved, but the angle between conducting terminals and circuit board cannot be adjusted, causing welding misalignment
Solution Approach 1:
The card connector is segmented into a rigid fixed arm portion and a flexible welding portion. The fixed arm maintains structural stability and provides mechanical support, while the welding portion can be independently adjusted to achieve the correct angle with the circuit board. This segmentation allows both rigidity and adaptability to coexist in different parts of the connector.
Data Source
AI summary
A card connector comprises an insulative housing, two side arms fitting into the two sides of the insulative housing and a positioning set buckled to the side arms. The insulative housing has a slot for adopting the electronic card, and the slot comprises a plurality of conducting terminals. The side arms respectively have a movable arm and a fixed arm. The movable arm and the fixed arm are formed in a single-piece structure. The movable arm is for buckling the electronic card. The positioning set comprises a welding portion, a first plane, a bent portion extending upwardly from the first plane and a second plane extending downwardly from the bent portion. Thus to enable the card connector to automatically adjust the angle between the conducting terminals and the circuit board, thus to maintain the welding end of the conducting terminals and the welding portion of the positioning set on the same plane, in order to steadily weld the conducting terminals to the circuit board and accordingly upgrade the quality of the electrical connection of the card connector.