Flat Wiring Member Surface Contact Heat Dissipation
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Solution Overview
Problem
Existing attachment structures for wiring members on vehicles inadequately transmit heat due to circular reinforcement and round wire harnesses, limiting heat radiation properties.
Innovation Solution
A flat wiring member with surface contact to a metal member, comprising wire-like transmission members and a sheet material with one metal-coated surface for enhanced heat transfer, and flexibility to follow curved parts of the metal member for increased contact area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a circular reinforcement is covered with a rectangular protection member and round wire harnesses are bundled, then the wiring member can be attached to the vehicle, but heat radiation properties are insufficient
Solution Approach 1:
The patent transitions from circular cross-section wiring members to a flat wiring member with rectangular cross-section. This dimensional change allows the wiring member to make surface contact with the metal member, significantly increasing the heat radiation area and improving thermal dissipation properties.
Solution Approach 2:
The patent changes the geometric parameters of the wiring member from circular to flat rectangular cross-section. This parameter change enables the wiring member to achieve surface contact with the metal member, thereby enhancing heat radiation efficiency without compromising electrical functionality.
2Temperature
If the wiring member is made flat with surface contact to the metal member, then heat radiation properties are enhanced, but the wiring member must have flexibility to follow curved parts of the metal member
Solution Approach 1:
The patent employs a flat wiring member with inherent flexibility that can conform to curved surfaces. The thin film structure allows the wiring member to follow the contours of the metal member while maintaining surface contact, thereby achieving both enhanced heat radiation and adaptability to various mounting geometries.
3Temperature
If the wiring member has surface contact with the metal member, then heat transfer is improved, but the cross-section area of electrical wires must be reduced to maintain weight and thickness constraints
Solution Approach 1:
By changing from circular to flat rectangular cross-section, the patent increases the surface area for heat contact with the metal member while reducing the volume of the wiring member. This dimensional transformation improves heat transfer efficiency without increasing weight, and may even reduce it.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration significantly enhances heat radiation properties by allowing efficient heat transfer from the wiring member to the vehicle, potentially reducing the cross-section area of electrical wires, weight, and thickness while maintaining or exceeding current capacity.
Implementation Method 1
heat of the electrical wires is hardly transmitted to the reinforcement properly
Data Source
AI summary
An attachment structure of a wiring member includes a metal member provided in a vehicle and a wiring member flatly formed to be disposed to have surface contact with the metal member and connecting an electrical component mounted to the vehicle. For example, the wiring member includes a plurality of electrical wires and a sheet material with one main surface having surface contact with the metal member and the other main surface on which the plurality of electrical wires are provided.