Smart Metered Power Sub-Distribution Board for Expandable Home Wiring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sub-distribution boards are inflexible and prone to wiring errors due to individual on-site cabling when additional building technology devices are added to a household electrical network, lacking the ability to accommodate multiple devices without extensive reconfiguration.
Innovation Solution
A domestic power sub-distribution board with integrated smart meter, circuit breakers, and branch points allows for parallel connections of multiple devices, reducing the need for on-site cabling by pre-arranging necessary electrical connections and safety measures, enabling easy expansion with additional technology devices like photovoltaic systems, heat pumps, or charging stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sub-distribution board is installed to accommodate additional building services devices, then the building can support more technology devices, but the installation requires individual on-site cabling which is complex and error-prone
Solution Approach 1:
The patent applies preliminary action by pre-arranging all necessary electrical connections, circuit breakers, and safety measures within the sub-distribution board during manufacturing. The board comes with pre-configured connection terminals and internal wiring, so that upon installation, devices can be connected simply by plugging into predetermined terminals without requiring complex on-site cabling work.
Solution Approach 2:
The sub-distribution board itself acts as an intermediary device between the main power supply and multiple building services devices. It provides a standardized interface with multiple connection terminals, eliminating the need for direct custom wiring between the power source and each individual device, thereby simplifying the overall installation process.
2Adaptability or versatility
If traditional sub-distribution boards are used for each specific device, then each device can be connected, but multiple separate boards are needed for different devices increasing installation effort
Solution Approach 1:
The patent merges multiple device-specific connection capabilities into a single integrated sub-distribution board. Instead of installing separate boards for photovoltaic systems, heat pumps, charging stations, and other building services devices, all these connections are consolidated into one board with multiple terminals, each designed for specific device types but all accessible from a single installation point.
Solution Approach 2:
The sub-distribution board is designed with universal multi-functionality, providing a standardized interface that can accommodate various building services devices simultaneously. The board includes multiple connection terminals that can serve different device types (photovoltaic inverters, heat pumps, charging stations, etc.) without requiring separate specialized boards for each device category.
3Reliability
If individual circuit breakers are installed for each device, then each device is protected, but all circuit breaker slots in the house connection box become occupied
Solution Approach 1:
The patent applies segmentation by dividing the protection function into two levels: the sub-distribution board contains individual circuit breakers for each device connection terminal, providing device-specific protection, while the house connection box only needs to accommodate the main incoming power connection. This hierarchical segmentation of protection functions allows device-level circuit breakers to be housed in the sub-distribution board rather than overcrowding the house connection box.
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a domestic power sub-distribution board (10, 70) comprising a housing (18) in which a first connection area (12) is located, which has a specific number of first connecting elements (74) for connecting a connecting power line (12) of a domestic power network as required. A second connection area (86) in the housing (12) is provided with a number of second connecting elements (88) corresponding to the specific number for connecting a first domestic appliance as required by means of a connecting line. Each first connecting element (74) is electrically connected by a distribution line (75) having a plurality of conductors to a respective second connecting element (88) by means of either a distribution conductor (76, 78, 80), a distribution neutral conductor (82), or a distribution protective conductor (84).A first circuit breaker (92) is electrically interposed in each distribution conductor (76, 78, 80) between the corresponding first connection elements (74) and the second connection elements (88) corresponding to the first connection elements. In addition, a smart meter (20) is arranged in the housing (18) and is designed such that it is electrically interposed in each of the distribution conductors (76, 78, 80) and the distribution neutral conductor (82) between the corresponding first connection elements (74) and the first circuit breaker (92). In addition, further third connection areas are provided, to each of which a further domestic technology device can be connected. The invention relates to a domestic power sub-distribution system having a domestic power sub-distribution board (10) that cooperates with a control device (26) arranged outside the housing (18).