Dual-Voltage DC Home Wiring Layout to Prevent Bus Interference
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Solution Overview
Problem
The complexity and poor security of DC home wiring systems due to varying power levels and voltages among DC appliances lead to potential interference and safety issues.
Innovation Solution
A DC home power consumption system with high-voltage and low-voltage DC buses, where high-power appliances are connected to the high-voltage bus and low-power appliances to the low-voltage bus, with priority based on power, usage frequency, and user requirements, and spatial isolation to ensure safety and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple DC voltages are used for different power levels, then DC appliances can operate at appropriate voltages, but wiring complexity increases and strong-weak electricity interference occurs
Solution Approach 1:
The patent segments the DC power distribution system into multiple voltage levels (high voltage DC bus and low voltage DC bus) with clear functional separation. High-power appliances connect to the high-voltage DC bus while low-power appliances connect to the low-voltage DC bus, creating distinct wiring paths that reduce complexity and prevent interference between different voltage levels.
2Adaptability or versatility
If multiple DC voltages are used for different power levels, then DC appliances can operate at appropriate voltages, but strong and weak electricity interference occurs
Solution Approach 1:
The system separates strong electricity (high-voltage DC bus for high-power appliances) from weak electricity (low-voltage DC bus for low-power appliances) into distinct wiring systems. This spatial and functional segmentation prevents electromagnetic interference between high-power and low-power devices while maintaining adaptability for different appliance types.
3Adaptability or versatility
If DC home wiring is implemented without standardized voltage levels, then flexible appliance connection is achieved, but safety and reliability deteriorate
Solution Approach 1:
The patent establishes standardized voltage level parameters for DC home wiring, defining specific voltage ranges for high-voltage and low-voltage DC buses. This standardization transforms the flexible but unsafe approach into a reliable system where appliance connection flexibility is maintained through clear parameter definitions and corresponding protection mechanisms.
Data Source
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AI summary
The present disclosure discloses a DC home power consumption system and a wiring method for home appliances based on the system. The system includes: a home power supply configured to supply power for the home power consumption system; a high-voltage DC bus connected to the home power supply and configured to supply power for a high-power appliance; a low-voltage DC bus connected to the home power supply or the high-voltage DC bus and configured to supply power for a low-power appliance.