Vehicle ECU Connector Sealing Structure Design
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Solution Overview
Problem
Existing electronic control devices for vehicles face challenges in securing sufficient sealing quality due to insufficient sealing areas between the connector, cover, and base, leading to potential moisture and foreign substance ingress.
Innovation Solution
A sealing structure is implemented where protrusions are formed along the outer periphery of the connector and inner periphery of the cover and base, maintaining a predetermined gap for the application of a sealing member, enhancing the sealing area and stability by forming recessed portions and inclined or curved surfaces to enlarge the sealing sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a sealing member is applied on binding regions between grooves or projections at connector side or between projections or grooves at cover side and base side, then the sealing structure is simplified, but the sealing area is insufficient and sealing quality cannot be secured
Solution Approach 1:
The patent transitions from point-like or linear sealing regions to a planar sealing surface by forming a sealing recess on the connector and applying sealing material across the entire surface area of the sealing recess, thereby significantly increasing the sealing area from one-dimensional binding regions to two-dimensional sealing surfaces
Solution Approach 2:
The patent changes the sealing parameter from localized binding regions to extended sealing surfaces by forming recesses with specific dimensions (length, width, depth) and applying sealing material to cover the entire sealing surface area, thereby transforming the sealing mechanism from point-contact to surface-contact
2Reliability
If protrusions are formed along outer periphery of connector and inner peripheries of cover and base with predetermined gap, then sealing area is enlarged and sealing quality is improved, but the structure becomes more complex
Solution Approach 1:
The patent segments the sealing structure into distinct functional elements: protrusions formed on the connector and cover/base, sealing recesses created between these protrusions, and sealing material applied within the recesses. This segmentation allows each element to perform its specific function while contributing to the overall sealing system
Solution Approach 2:
The sealing material acts as an intermediary substance that fills the gap between the protrusions of the connector and cover/base, creating a sealing bridge that connects these components and prevents moisture or foreign substances from entering the electronic control device
Data Source
AI summary
The present invention relates to an electronic control device which is an electronic control device such as an engine ECU for a vehicle and has a tight sealing structure between a case and a connector. The present invention provides an electronic control device for a vehicle, which implements a new type of sealing manner in which a space to be filled with a sealing material is formed between a case side dam and a connector side dam when a case and a connector of the electronic control device are assembled, and the sealing material is applied in the space, which is formed as described above, such that airtightness for an assembly region between the case and the connector is maintained, thereby securing sufficient sealing areas because of enlarged sealing sections, and achieving stable sealing quality and improving quality.