Vehicle Wire Connection Structure for Optional Parts
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Solution Overview
Problem
Existing wire connection structures for vehicle optional parts lack enhanced workability and efficient arrangement of feeder cords, leading to increased wiring complexity and space requirements when additional parts are installed.
Innovation Solution
A wire connection structure that includes a power socket connected to a vehicle's power supply, with a main-side output cord branched from a bundled harness, using couplers for disconnectable connections between the power socket, optional part harness, and main-side output cord, allowing the optional part harness to cut in the power supply line while maintaining functionality and facilitating bundling for reduced space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If feeder cords are arranged for additional optional parts, then power supply capability is improved, but wiring space and complexity increase
Solution Approach 1:
The feeder cord system is segmented into modular components: main harness with main-side output cord, optional part harness with input cord and option-side output cord, and couplers. This segmentation allows flexible configuration where optional parts can be independently connected or disconnected without affecting the entire wiring system, thus improving adaptability while managing complexity through standardized modules.
Solution Approach 2:
The coupler design provides universal connectivity where the same connector type is used for all connections (main-side output cord to power socket, option-side output cord to power socket, and input cord to main-side output cord). This universal interface enables any optional part to be connected to any available power socket, creating a multi-functional system that can support various configurations without requiring different wiring arrangements.
2Adaptability or versatility
If feeder cords are arranged for additional optional parts, then power supply capability is improved, but wiring space increases
Solution Approach 1:
The optional part harness is designed to be nested within the existing wiring structure. The input cord connects to the main-side output cord by inserting into the coupler, effectively nesting the optional part harness inside the main harness pathway. This nesting approach allows multiple optional parts to share the same physical space along the main harness, significantly reducing the total wiring space required compared to separate parallel routing.
Solution Approach 2:
The system utilizes the three-dimensional space around the main harness by routing cords in multiple directions and levels. The main-side output cord branches off from the main harness in one direction, while the optional part harness connects through couplers that can be positioned at different spatial locations, effectively using vertical and lateral dimensions to organize wiring without increasing horizontal space requirements.
3Ease of operation
If couplers are used for disconnectable connections, then ease of installation is improved, but connection points increase
Solution Approach 1:
The couplers are pre-installed on the main-side output cord, option-side output cord, and input cord during manufacturing. This preliminary action means that during vehicle assembly or optional part installation, workers only need to perform simple plug-and-play connections by inserting cords into pre-prepared couplers, rather than performing complex wiring tasks on-site. This significantly improves ease of installation while the standardized coupler design keeps the increase in connection points manageable.
Data Source
AI summary
A wire connection structure for vehicle optional part includes a power socket connected to a vehicle power supply, and obtains a power supply for an optional part by cutting in a feeder path supplying electric power to the power socket. In the wire connection structure, a main-side output cord branched from a main harness is preliminarily connected to the back surface side of the power socket by way of couplers. In addition, each optional part harness is provided at an end portion thereof with an option-side output cord and an input cord, which each have a standardized structure. At the time of additionally installing each optional part, the option-side output cord is connected to the power socket, and the main-side output cord or the option-side output cord, which has been detached from the power socket, is bent into a U shape and connected to the input cord.