Inverter Case Overlap Structure for Connector Collision Strength
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Solution Overview
Problem
Existing inverter safety structures for vehicles are complex and increase the number of components and weight, compromising safety during collisions.
Innovation Solution
The inverter design incorporates an overlapping configuration between the flange portion and the outer wall of the connector connecting portion, enhancing structural strength without adding new components, and features a ribbed arch-shaped outer wall for increased durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If another structure is further attached to the inverter to buffer a collision, then safety at the time of collision is improved, but the structure becomes complicated and the number of components and weight increase
Solution Approach 1:
The patent integrates the collision buffering function into the existing case structure by making the flange portion and outer wall portion overlap, combining the structural support and collision protection functions into a single integrated component rather than adding separate buffering structures
Solution Approach 2:
The patent utilizes the overlapping arrangement of the flange portion and outer wall portion in a directional layout, creating a multi-layered protective structure that disperses collision impact through spatial distribution without adding volumetric complexity
2Reliability
If another structure is further attached to the inverter to buffer a collision, then safety at the time of collision is improved, but the weight increases
Solution Approach 1:
The collision protection function is merged into the existing case structure through the overlapping flange and outer wall portions, eliminating the need for separate weight-bearing collision buffers while maintaining protective functionality
3Reliability
If the connector connecting portion is made stronger to prevent damage at collision, then safety is improved, but the device complexity increases
Solution Approach 1:
The patent applies localized reinforcement by making the flange portion and outer wall portion overlap specifically at the connector connecting portion, providing targeted strength enhancement only where needed rather than strengthening the entire case structure
Solution Approach 2:
The structural reinforcement for the connector connecting portion is achieved by integrating the overlapping flange and outer wall portions, combining the strengthening function with the existing case geometry without adding separate reinforcement components
Data Source
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AI summary
An inverter includes a case, and the case includes an upper case and a lower case attached to a bottom surface side of the upper case. The upper case includes a flange portion constituting an attachment portion of the lower case, and a connector connecting portion to which a connector is connected. The connector connecting portion includes an outer wall portion that forms an outer wall of the connector connecting portion. At least a part of the flange portion and at least a part of the outer wall portion are disposed so as to overlap each other in a direction in which the connector connecting portion and the structure face each other.