USB to HSD Adapter Y-Conductor Power Distribution
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Solution Overview
Problem
Existing adapters for connecting USB to HSD interfaces in motor vehicles are limited by their use of simple differential signal transmission and lack efficient energy distribution, leading to higher resistance and weight, which increases costs and complexity in vehicle systems.
Innovation Solution
A generic adapter with a USB interface connected to an HSD interface via conductors, where one supply contact element is divided between two HSD supply contact elements using a Y-conductor, allowing for efficient energy distribution and the use of thinner cables, along with an outer conductor for shielding and ground potential, enabling double differential signal transmission and simplified connection verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simple differential signal transmission is used in USB to HSD adapters, then device complexity is reduced, but energy distribution efficiency deteriorates leading to higher resistance
Solution Approach 1:
The patent segments the power transmission path by dividing the single USB power contact into multiple HSD power contacts through Y-shaped conductors. This segmentation allows the power to be distributed across multiple parallel paths, reducing overall resistance and improving energy distribution efficiency while maintaining a relatively simple adapter structure.
Solution Approach 2:
The patent employs nested conductors where Y-shaped conductors are integrated within the adapter housing, with the power transmission conductors nested around the signal transmission conductors. This nested arrangement optimizes space utilization and reduces interference while maintaining efficient energy distribution.
2Reliability
If thicker cables are used to reduce resistance, then energy transmission efficiency is improved, but weight and cost increase
Solution Approach 1:
By segmenting the power transmission into multiple parallel conductors within the cable, the patent achieves lower overall resistance without requiring each individual conductor to be thick. This allows the use of thinner, lighter cables while maintaining or improving energy transmission efficiency compared to a single thick conductor.
Solution Approach 2:
The patent merges multiple thin conductors to function collectively as a power transmission system equivalent to or better than a single thick conductor. The combined effect of multiple parallel conductors provides low resistance and high efficiency while keeping individual conductor dimensions small, reducing overall cable weight.
3Object-affected harmful factors
If outer conductor is used for shielding in HSD interface, then electromagnetic shielding is improved, but device complexity increases
Solution Approach 1:
The patent makes the outer conductor serve multiple functions: it provides electromagnetic shielding for the inner conductors and simultaneously acts as a power transmission conductor connected to the USB ground contact. This multi-functionality improves electromagnetic shielding without significantly increasing device complexity, as the same structural element performs both protective and functional roles.
4Ease of operation
If connection verification is simplified, then ease of operation is improved, but measurement precision may deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where the adapter uses the HSD data contacts to send test signals back to the USB data contacts. This automatic feedback system verifies connection correctness by checking signal integrity and contact continuity, providing both ease of operation through automated verification and high measurement precision through electrical signal testing.
Data Source
AI summary
The present invention relates to an adapter having a first electrical interface and a second electrical interface which each have contact elements for transmitting data (data contact elements) and for transmitting electric supply energy (supply contact elements), the contact elements of said first interface being connected to the corresponding contact elements of said second interface via conductors. A first supply contact element of the first interface is connected to two first supply contact elements of the second interface and a second supply contact element of the first interface is connected to a second supply contact element of the second interface, said second supply contact element of the second interface being in the form of an external conductor surrounding the other contact elements.