Hook-Shaped Cable Guide for ECU Housing Routing

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Solution Overview

Problem

Conventional wire guide solutions in electronic control units (ECUs) often result in cable damage and short circuits due to improper routing and trapping of wires during assembly, especially when different devices with varying cable characteristics are integrated, leading to inefficiencies in serial production and increased design costs.

Innovation Solution

A hook-shaped cable guide integrated into the ECU housing cavity, which extends from the wall and captures part of the cable, preventing it from being trapped between the cover and other surfaces, ensuring secure routing and compatibility with various cable diameters and lengths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual cable routing is used during assembly, then flexibility in cable management is improved, but cable damage and short circuits occur due to improper routing and trapping between metal surfaces

Engineering Contradiction:
Improvecable routing flexibilityVSAvoidcable integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A dedicated cable guide feature is introduced as an intermediary element between the cable and the housing interior. This guide feature, which may be a raised rib, protrusion, or groove structure, acts as a mediator that directs the cable along a safe path and prevents direct contact between the cable and potentially damaging metal surfaces or moving parts during assembly and operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The cable guide feature is pre-formed as an integral part of the housing structure during housing manufacturing. This preliminary action ensures that the cable routing path is established before cable installation, preventing cable damage during the assembly process without requiring additional manual intervention or adjustment.

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If bespoke surface features are created in the housing for each device type, then cable guidance accuracy is improved, but device complexity and production costs increase

Engineering Contradiction:
Improvecable guidance accuracyVSAvoidhousing feature variety
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

A standardized cable guide feature design is implemented that serves multiple device types and cable configurations. This universal guide feature can accommodate different cable diameters, routing directions, and device locations without requiring custom housing modifications, thereby reducing overall system complexity while maintaining adequate cable guidance accuracy.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The cable guide feature incorporates adjustable parameters such as varying heights, angles, or positions that can be modified to suit different cable types and device configurations. By changing these parameters within a standardized feature design, the system achieves adaptability without requiring completely bespoke features for each device type.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If standardized cable management features are used in the housing, then production efficiency is improved, but cable routing adaptability for different device types decreases

Engineering Contradiction:
Improveassembly efficiencyVSAvoidcable routing flexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The standardized cable guide feature includes variable parameters such as height, angle, position, and cross-sectional shape that can be adjusted to accommodate different cable types and device configurations. This allows a single standardized feature design to serve multiple purposes while maintaining assembly efficiency through standardized manufacturing processes.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The cable guide feature utilizes three-dimensional spatial configuration with variations in height, angle, and position to achieve adaptability for different device types. By employing dimensional variations rather than completely different feature geometries, the system maintains standardized manufacturing while providing routing flexibility across multiple device configurations.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20240389251A1Wire Guide in an Electronic Control Unit
Publication Date: 2024.11.21 APTIV TECHNOLOGIES AG
  • US20240389251A1 patent drawing
  • US20240389251A1 patent drawing

AI summary

A housing for an electronic control unit (ECU). The housing includes a cavity within the housing for accommodating at least part of a length of a cable electrically communicating between first and second electronic devices. The cavity has an opening configured for receiving a cover to close the cavity and be fixable to the housing. The housing includes a hook shaped cable guide extending from or adjacent a wall of the cavity and configured for engagement with at least part of the length of the cable.