Dual-Card Connector Terminal Layout for Reduced Board Area
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Solution Overview
Problem
Card connectors occupy a large plate area in terminal devices, restricting the development of lightweight and thin designs, such as in mobile phones where multiple cards like SIM and memory cards need to be accommodated.
Innovation Solution
A card connector design with multiple first and second terminals arranged to form access areas, allowing for the installation of two types of cards in a cascading manner, reducing the occupied space and enabling compatibility with both cards, while using an insulation body and elastic ends to ensure electrical connection and prevent short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate card connectors are used for different card types, then each card can be properly accommodated, but the plate area occupied increases
Solution Approach 1:
The card connector is designed with a universal structure that can accommodate multiple card types (first card and second card) using the same connector. The connector includes a first card access area and a second card access area with different terminal arrangements, allowing one connector to serve multiple functions and replace what would traditionally require separate connectors for each card type.
Solution Approach 2:
The second card access area is nested within or adjacent to the first card access area in a cascading arrangement. The terminals for the second card are distributed on the periphery of the first card access area, creating a nested layout where the second card connector structure utilizes the space around the first card connector, thereby reducing the total plate area occupied.
2Adaptability or versatility
If multiple separate card connectors are installed, then all cards can be disposed, but space inside the terminal is occupied
Solution Approach 1:
Multiple card connector functions are merged into a single integrated card connector structure. The first terminals and second terminals are arranged in different patterns within the same connector body, allowing simultaneous support for first cards and second cards. This merging eliminates the need for separate connector components and reduces the overall volume occupied in the terminal device.
Solution Approach 2:
The card connector utilizes a cascading arrangement where the second card access area is positioned in a different spatial dimension relative to the first card access area. The terminals are distributed in three-dimensional space with some terminals on the front side and others on the rear side of the card access areas, effectively using vertical and lateral dimensions to pack multiple card functions into a compact volume.
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 significantly reduces the space occupied by card connectors and holders, allowing for a more integrated terminal device with improved functionality and the ability to accommodate additional components without increasing the plate area, facilitating the lightening and thinning of devices like mobile phones.
Implementation Method 1
each first terminal includes a fixed end and an elastic end, the fixed end is fixedly connected to the insulation body, the elastic end elastically protrudes relative to a surface of the insulation body and is configured to abut against the first card or the second card
Data Source
AI summary
A card connector, a card holder, and a terminal device, where the card connector includes a plurality of first terminals and one or more second terminals. The first terminals are arranged to form a first card access area that installs a first card, and the first terminals are configured to be electrically coupled to the first card. The one or more second terminals are distributed on a periphery of the first card access area, the first terminals and the one or more second terminals form a second card access area that installs a second card, and the first terminals and the one or more second terminals are configured to be electrically coupled to the second card.