Switch Device for On-Board Power Supply Routing
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Solution Overview
Problem
Existing on-board power supply systems face difficulties in routing wires due to the need for high current capacity wires, which become thick and cumbersome, especially when dealing with high current loads, making it challenging to manage power distribution efficiently.
Innovation Solution
A switch device for on-board power supply systems that includes conductive paths with varying current capacities, allowing for thinner wires to be used for lower current loads, and a control circuit to manage power distribution and prevent ground faults, enabling easier routing and redundant power supply configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high current capacity wires are used to cope with high current loads, then the current carrying capacity is sufficient, but the wires become thick and difficult to route
Solution Approach 1:
The power supply system is divided into multiple independent power sources (main battery and sub-battery) with separate switching paths. Each battery can independently supply power to different auxiliary devices through dedicated switches and conductive paths, allowing the system to handle high current loads without requiring all wires to have high current capacity simultaneously.
Solution Approach 2:
Different conductive paths are assigned different current capacities based on the specific power requirements of each auxiliary device. The third conductive path (connecting to first auxiliary device group) has higher current capacity, while the fourth and fifth conductive paths (connecting to second auxiliary device group) have lower current capacities, optimizing wire thickness for each local requirement.
2Adaptability or versatility
If multiple switches and conductive paths are added to enable independent power supply from main and sub-batteries, then power distribution flexibility is improved, but device complexity increases
Solution Approach 1:
The main battery and sub-battery system is designed to universally supply power to both the first auxiliary device group and the second auxiliary device group through different switching combinations. The switches can be configured in multiple states to achieve different power distribution modes, making the system multi-functional and adaptable to various power supply scenarios.
Solution Approach 2:
The switching device allows dynamic reconfiguration of power paths by controlling the on/off states of the first and second switches. This enables the system to adaptively change power distribution patterns based on real-time requirements, such as switching between single battery supply, dual battery supply, or isolating specific batteries from specific loads.
Data Source
AI summary
A switch device that includes a first input terminal that is connected to a first battery; a second input terminal that is connected to a second battery; a first output terminal that is connected to a first load; a second output terminal and a third output terminal that are both connected to a second load; a first conductive path that is connected to the first input terminal; a first switch that includes one terminal that is connected to the first input terminal via the first conductive path, and further includes another terminal; a second conductive path that is connected to the second input terminal; and a second switch that includes one terminal that is connected to the second input terminal via the second conductive path, and further includes another terminal.