SIM Card Connector Terminal Integration
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Solution Overview
Problem
The existing SIM card connectors are bulky and costly due to the separate placement of detecting and grounding terminals, which complicates the design and increases the size of the circuit board and manufacturing costs.
Innovation Solution
Integrating a detecting terminal and a grounding terminal into the same hollow area of the SIM card connector, with each terminal having a regular and contact part, and using an insulation shell to expose the contact parts, simplifying the design and reducing the overall size and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a detecting terminal is separately placed on the SIM card connector to determine proper SIM card insertion, then the detection function is achieved, but the size of the SIM card connector and circuit board increases
Solution Approach 1:
The patent combines the detecting terminal and grounding terminal into a single integrated structure. The detecting terminal includes both a detecting contact part and a grounding contact part that work together to determine SIM card insertion status while maintaining proper grounding, thereby achieving detection function without increasing overall connector size.
Solution Approach 2:
The detecting terminal is designed to serve multiple functions simultaneously - it provides both detection capability for SIM card insertion status and grounding function for electrical stability. This multi-functionality eliminates the need for separate dedicated grounding structures, reducing overall device complexity and size.
2Reliability
If a detecting terminal is separately placed on the SIM card connector, then the detection function is achieved, but the manufacturing cost increases
Solution Approach 1:
By merging the detecting terminal and grounding terminal into one integrated component, the patent reduces the total number of parts that need to be manufactured and assembled. This consolidation simplifies the manufacturing process, reduces component inventory requirements, and lowers overall manufacturing costs while maintaining full detection functionality.
3Reliability
If multiple terminals are placed separately in the SIM card connector, then each terminal function is optimized, but the device complexity increases
Solution Approach 1:
The patent integrates multiple terminal functions into a unified detecting terminal structure that includes both detecting and grounding contact parts. This merging approach maintains the functional integrity of each terminal while reducing the overall structural complexity and number of discrete components required in the connector design.
Data Source
AI summary
The present invention discloses a subscriber identity module connector which places a detecting terminal and a grounding terminal into a same contact area. The above placement of the detecting terminal and the grounding terminal form a circuit to determine if a SIM card is inserted appropriately. As a result, there is no need to set conventional detecting unit, and the space of the subscriber identity module connector are advantageously saved. It not only simplifies the placement of circuit board (PCB) and but also reduces the manufacturing cost.