Headlight Module Spray Device Integration

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Solution Overview

Problem

The separate installation of a headlight cleaning system's spray device in vehicles requires time-consuming and costly adjustments to align it with the headlight module, often necessitating additional assembly tools.

Innovation Solution

Integrating the spray device as a structural unit with the headlight module, allowing for simplified assembly and eliminating the need for separate alignment, with a detachable fixing device using a rod-like element and screw connection for easy installation and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the spray device is installed separately from the headlight module, then the spray device can be independently maintained or replaced, but the assembly process becomes time-consuming and expensive due to alignment requirements

Engineering Contradiction:

ImproveIndependent maintenance of spray deviceVSAvoidAssembly time and cost

Core Design Contradiction:

Ease of repairVSProductivity

Solution Approach 1:

The spray device is integrated with the headlight module to form a structural unit, where the spray device is detachably connected to the headlight module housing. This merging eliminates the need for separate alignment during assembly while maintaining the ability to detach and replace the spray device independently for maintenance purposes.

Inventive Principle:

Principle #5Merging (Combining)

2Productivity

If the spray device is integrated with the headlight module, then the assembly process is simplified, but the spray device becomes harder to replace or repair

Engineering Contradiction:

ImproveAssembly simplificationVSAvoidSpray device replacement

Core Design Contradiction:

ProductivityVSEase of repair

Solution Approach 1:

The integrated structure is designed with a detachable connection between the spray device and headlight module housing, allowing the spray device to be segmented as a separate replaceable component. This segmentation enables easy removal and replacement of the spray device while maintaining the integrated structural unit during normal assembly.

Inventive Principle:

Principle #1Segmentation

3Manufacturing precision

If additional assembly tools are used for aligning the spray device, then the positioning precision is improved, but the assembly complexity and cost increase

Engineering Contradiction:

ImproveSpray device alignmentVSAvoidAssembly tools and procedures

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The spray device is pre-positioned and fixed to the headlight module housing during the manufacturing process, forming a pre-assembled structural unit. This preliminary action ensures precise positioning is achieved during manufacturing rather than during vehicle assembly, eliminating the need for additional alignment tools and procedures at the assembly stage.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3098122B1Vehicle, in particular commercial vehicle, with a headlight module

Publication Date: 2019.09.04 MAN TRUCK & BUS SE

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AI summary

The invention relates to a vehicle, in particular a commercial vehicle, with a headlight module (1) comprising a translucent cover element (5), in particular a headlight lens, by means of which a lighting device (3) of the headlight module (1) is covered, and with a headlight cleaning system by means of which the cover element (5) of the headlight module (1) can be cleaned, wherein the headlight cleaning system comprises a spray device (11) by means of which the cover element (5) can be sprayed with a liquid, in particular with a cleaning fluid. According to the invention, the spray device (11) is associated with the headlight module (1), so that the spray device (11) and the headlight module (1) form a single assembly (12).