Inverter Cover Harness Protection via Slanted Guide
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Solution Overview
Problem
In motor-driven vehicles, when a collision occurs, the inverter and its connected harnesses can become displaced and contact the vehicle body panel, leading to reduced durability due to direct impact, which compromises the integrity of the harnesses.
Innovation Solution
An inverter cover with a body part covering the upper side of the inverter and an extended rearward part positioned between the harness connectors and the vehicle body panel's edge, which indirectly absorbs impact, protecting the harnesses by curving downward to envelop them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inverter is covered with a standard cover design, then the inverter is protected from direct exposure, but the harness connected to the rear part of the inverter is vulnerable to direct contact with the vehicle body panel during collision
Solution Approach 1:
The extended part of the inverter cover acts as an intermediary element positioned between the harness connecting part and the vehicle body panel. During collision, this extended part absorbs and distributes the impact force, preventing direct contact between the harness and the sharp edge of the vehicle body panel, thereby protecting the harness from damage.
Solution Approach 2:
The extended part of the inverter cover is designed in advance to provide cushioning protection for the harness. By extending the cover rearward beyond the standard design, it creates a protective buffer zone that absorbs collision impacts before they can reach the vulnerable harness connecting part, ensuring harness durability during front-space collisions.
2Reliability
If the inverter cover is extended rearward to protect the harness, then the harness durability is improved, but the inverter cover structure becomes more complex
Solution Approach 1:
The inverter cover is segmented into two functional parts: the main cover body and the extended rearward part. This segmentation allows the extended part to specifically address harness protection needs without redesigning the entire cover structure, maintaining simplicity in the overall design while adding targeted protection functionality.
Solution Approach 2:
The extended part of the inverter cover merges the protective function with the existing cover structure. Rather than adding a separate protective component, the extension integrates seamlessly with the cover body, combining the covering and protecting functions into a single unified structure that reduces overall system complexity.
Data Source
AI summary
An inverter cover which is advantageous in maintaining durability of a harness is provided. An inverter cover 30 is mounted on an inverter 16. The inverter cover 30 includes a body part 32, an extended part (a slanted part) 34, and a bent part (guide part) 36. The body part 32 covers the inverter 16, and those parts of first to third harnesses 28A, 28B, 28C which are connected to a rear part of the inverter 16, from above. The slanted part 34 is connected to a rear part of the body part 32 via a bending part 35, and gradually displaced downward as going rearward. The slanted part 34 is positioned between those parts of the first to third harnesses 28A, 28B, 28C which are connected to the rear part of the inverter 16, and an edge part 24 of a vehicle body panel 12. The guide part 36 is provided at a rear end of the slanted part 34, for the purpose of guiding the slanted part 34 downward, when it comes into contact with the vehicle body panel 12.