Integrated Coolant Nozzle Housing to Prevent Assembly Leaks

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Solution Overview

Problem

Conventional housing designs for electrical assemblies feature separate coolant connections that are prone to assembly errors, require additional sealing components, and can lead to leakage risks, increasing manufacturing complexity and costs.

Innovation Solution

A housing design with integrated coolant connections formed as a single piece with the housing body, eliminating the need for separate connection units and seals, which reduces assembly errors and leakage risks while simplifying production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If separate connection units and seals are used for coolant connections, then the housing can be assembled with standardized components, but the assembly complexity increases and leakage risks arise

Engineering Contradiction:
Improvemanufacturing complexityVSAvoidassembly complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The coolant connection is integrated directly into the housing body as a one-piece construction, eliminating the need for separate connection units and seals. This merging of components reduces the total number of parts, simplifies assembly procedures, and eliminates potential leakage points at interfaces between separate components.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If separate connection units are used for coolant connections, then standardized components can be utilized, but the risk of assembly errors and leakage increases

Engineering Contradiction:
Improveleakage riskVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The coolant connection is integrated directly into the housing body as a one-piece construction, eliminating the need for separate connection units and seals. This merging of components reduces the total number of parts, simplifies assembly procedures, and eliminates potential leakage points at interfaces between separate components.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If separate connection units are used for coolant connections, then modular assembly is possible, but contact corrosion between different materials occurs

Engineering Contradiction:
Improvecorrosion resistanceVSAvoidmaterial compatibility
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The housing body and coolant connection are made from the same material (aluminum alloy), creating a homogeneous structure. This eliminates galvanic corrosion that would occur between dissimilar materials such as steel connection units, copper seals, and aluminum housing, thereby improving corrosion resistance and reliability.

Inventive Principle:
Principle #33Homogeneity

Data Source

PatentEP4418503A1Housing for an electrical assembly
Publication Date: 2024.08.21 BORGWARNER INC
  • EP4418503A1 patent drawingFigure 1
  • EP4418503A1 patent drawingFigure 2
  • EP4418503A1 patent drawingFigure 3

AI summary

Housing for an electrical assembly with a metallic housing body (1) which is formed in one piece or comprises several housing parts and which has at least one integrated coolant connection (5), wherein the coolant connection (5) is formed as a nozzle projecting from the housing body (1) and the coolant connection (5) is formed in one piece with the housing body (1) or with one of the housing parts.