EV Harness Routing Clips Prevent Interference
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Solution Overview
Problem
In conventional electric vehicle harness routing structures, the relative movement between the converter/charger and the charging port due to vibrations leads to differential deformation of quick and normal charge harnesses, causing interference between them.
Innovation Solution
A harness routing structure for electric vehicles that includes a power unit, a charging port, a quick charging harness, and a normal charging harness, with specific clips to constrain and manage the length of each harness, ensuring the normal charging harness is shorter and less deformed than the quick charging harness to prevent interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power unit is resiliently supported to allow vibration absorption, then the reliability of the power unit is improved, but the charging harnesses undergo differential deformation causing interference between them
Solution Approach 1:
The patent applies different flexibility characteristics to different harnesses (normal charging harness is more flexible than quick charging harness) and uses differential constraint mechanisms (different clip positions and harness lengths) to create localized quality differences that prevent interference while allowing necessary movement
Solution Approach 2:
The patent changes the length parameter of the charging harnesses differently - the normal charging harness is made shorter between constraint points compared to the quick charging harness. This parameter differentiation ensures that during vibration, the harnesses deform by different amounts and maintain separate vibration modes, preventing interference
2Ease of manufacture
If the normal charging harness is made more flexible for easier routing, then the ease of manufacture is improved, but the harness undergoes larger deformation during vibration causing interference
Solution Approach 1:
The patent creates local quality differentiation by making the normal charging harness more flexible in specific sections while maintaining appropriate constraints. The harness flexibility is localized to specific segments between constraint points, allowing easy routing in manufacturing while controlling deformation during operation through differential length design
Solution Approach 2:
The patent allows the harnesses to dynamically adapt to vibration through elastic deformation while maintaining functional integrity. The differential length and flexibility create different dynamic responses between the two harnesses, ensuring they move independently without interfering with each other during vehicle operation
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
The structure effectively suppresses deformation of the normal charging harness, preventing interference with the quick charging harness and reducing the likelihood of damage or noise during vehicle vibrations.
Implementation Method 1
The power unit is resiliently supported on the vehicle body
Data Source
AI summary
An electric vehicle harness routing structure is provided for an electric vehicle having an electric motor as a drive source, a control device to control the electric motor as well as charging of a battery for power supply to the electric motor, and a power unit elastically supported on a vehicle body. The harness routing structure includes a charging port, a quick charging harness, a normal charging harness, a first quick-charge harness clip, a second quick-charge harness clip, a first normal-charge harness clip and a second normal-charge harness clip. The clips of the electric vehicle harness routing structure is provided such that when connecting a relatively movable power unit and charging ports with the quick charging harness and the normal charging harness, it is possible to prevent interference of between the charging harnesses.