Expansion Card Power Supply Interface Design
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Solution Overview
Problem
Existing expansion cards in computer cases are limited in their application as they cannot function as power supply devices for peripherals, restricting their usability.
Innovation Solution
An electrical power supply expansion card is designed with a circuit board and housing, equipped with peripheral and power source interfaces, allowing it to draw power from the computer case and supply it to external devices, enhancing its functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If expansion cards are designed for data transmission only (USB port, audio port), then data transmission functionality is achieved, but power supply capability is lost
Solution Approach 1:
The expansion card is designed with dual functionality: it retains data transmission capabilities through peripheral interfaces (USB, audio ports) while simultaneously providing power supply capability through power source interfaces that connect to the computer case power supply, enabling the card to serve both data and power functions
Solution Approach 2:
The patent combines the power source interface, peripheral interface, and circuit board into a single integrated expansion card structure, merging previously separate data transmission and power supply functions into one unified device that can be installed in a single expansion slot
2Adaptability or versatility
If expansion cards are installed via expansion slots, then data transmission is enabled, but power supply to external devices is not available
Solution Approach 1:
The expansion card provides multiple functions through a single installation: data transmission via peripheral interfaces and power supply via power source interfaces, eliminating the need for separate power supply devices and simplifying the overall system setup
3Adaptability or versatility
If peripheral interfaces extend outward from the fixing insertion plate, then external device connection is enabled, but the card occupies more space in the computer case
Solution Approach 1:
The peripheral interfaces extend outward from the fixing insertion plate in a direction perpendicular to the plane of the plate, utilizing the third dimension (depth) rather than expanding the two-dimensional footprint of the card in the computer case, thus maintaining compactness while providing external accessibility
Data Source
AI summary
Disclosed are an electrical power supply expansion card and a computer case. The electrical power supply expansion card comprises a housing and a circuit board. The circuit board is arranged on the housing, and the housing is installed in the computer case. The circuit board is provided with at least one peripheral interface, and is further provided with at least one power source interface. The at least one power source interface is detachably connected to a power source in the computer case so as to obtain electric power and output electric power via the at least one peripheral interface. The technical solution provided in the present invention can enable the expansion card to be an expanded power source of the power source in the computer case, thus supplying power to an external device, thereby improving the usability of the expansion card.