Side-Open HDMI Interface With Metal Shell For EMI Shielding
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Solution Overview
Problem
Current high-definition multimedia interfaces, such as HDMI A TYPE, typically have a single or two-layer interface design, which is insufficient to meet increasing customer demands for a greater number of connectors while also lacking in compactness, anti-vibration, impact-resistance, and effective EMI shielding.
Innovation Solution
A side-open vertical compound high-definition multimedia interface with multiple components and a shell assembly, featuring a main plastic shell with multiple cavities, a main metal shell with resilient guide tabs, and terminal parts with bridges and fish-eye portions for enhanced strength and contact stability, along with plastic ribs for support, to provide multiple connectors, anti-vibration, and EMI resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single or two-layer interface design is used, then the device complexity is reduced, but the quantity of connectors is insufficient
Solution Approach 1:
The patent transitions from a single-layer or two-layer interface design to a three-layer compound interface structure. By adding a vertical dimension with multiple layers (first layer, second layer, and third layer), the design accommodates multiple connectors without proportionally increasing overall device complexity. The layers are stacked vertically with systematic arrangement, allowing more connectors to be integrated in a compact form factor.
Solution Approach 2:
The interface is segmented into distinct functional layers, with each layer containing specific connectors and components. The first layer has first connectors, the second layer has second connectors, and the third layer has third connectors. This segmentation allows independent design and optimization of each layer while maintaining overall system integration, resolving the contradiction between quantity and complexity.
2Reliability
If traditional interface structures are used, then manufacturing is simpler, but anti-vibration and impact-resistance are insufficient
Solution Approach 1:
The patent employs a composite shell structure combining metal and plastic materials. The metal shell provides mechanical strength, anti-vibration, and impact-resistance properties, while the plastic components enable precise molding and assembly. This composite approach enhances reliability without significantly complicating manufacturing, as each material is used where it provides the most benefit.
Solution Approach 2:
The design incorporates protective elements and structural features that preemptively address vibration and impact forces. The metal shell acts as a protective barrier, and the layered structure with proper spacing and mounting provisions cushions components against mechanical shocks before they reach sensitive electrical connections, thereby improving reliability while maintaining manufacturability.
3Object-affected harmful factors
If traditional shielding structures are used, then EMI protection is insufficient, but adding comprehensive shielding increases device complexity
Solution Approach 1:
The metal shell serves multiple functions simultaneously: it provides structural support, anti-vibration protection, impact resistance, and electromagnetic interference (EMI) shielding. By integrating these functions into a single component rather than adding separate shielding elements, the design achieves comprehensive EMI protection without proportionally increasing device complexity. The metal shell acts as a Faraday cage, blocking electromagnetic signals while maintaining a relatively simple overall structure.
4Quantity of substance
If multiple connectors are added to meet customer demands, then the quantity of connectors increases, but compactness is reduced
Solution Approach 1:
The patent utilizes a three-layer vertical stacking arrangement to accommodate multiple connectors. Instead of expanding the interface horizontally with more connectors side-by-side, the design stacks connectors vertically across three layers. This dimensional transition allows a high quantity of connectors to be integrated in a compact footprint, maintaining small overall dimensions while providing numerous connection options.
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 solution achieves a compact, multi-connector interface with enhanced anti-vibration and impact-resistance, as well as effective EMI shielding, offering customers more connection options and improved reliability.
Implementation Method 1
The upper metal cap snaps firmly to the upper portion of the main plastic shell
Implementation Method 2
The main metal shell covers and snaps to the side and bottom portions of the main plastic shell
Implementation Method 3
the main metal shell includes more than one resilient guide tabs which could contact and guide the bottom portion of the sub-shell part
Implementation Method 4
the interface possesses excellent anti-EMI effects. Specifically, the main metal shell includes resilient guide tabs which can contact and guide the bottom portion of the sub-shell part, thereby effectively resisting EMI
Data Source
AI summary
The present application specifically relates to a side-open vertical compound high-definition multimedia interface, which includes more than one components and a shell assembly. Each component includes a terminal part and a sub-shell part. The shell assembly includes an upper metal cap, a main plastic shell and a main metal shell, the main plastic shell includes cavities used for containing the components. The component is formed by assembling the terminal part and the sub-shell part together. The number of the cavities is three or more, which are side-openly and vertically provided in the main plastic shell in a parallel manner. Each component can be inserted into one cavity. The main metal shell covers and snaps to the side and bottom portions of the main plastic shell. The advantageous effects of the present invention include: the interface is a compound connector having three or more cavities for containing the components, which could provide the customers with a plurality of connecting ports and thus more choices. At the same time, the interface is featured by anti-vibration, impact-resistance and excellent anti-EMI effects, etc.