Vehicle Lamp Reinforcement Protruding Element Connection

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Solution Overview

Problem

Existing vehicle headlamp arrangements face challenges in securely connecting the means of shaping light to the means of reinforcement, particularly due to the risk of damaging mandrels during assembly.

Innovation Solution

The means of reinforcement features at least one protruding element that contacts under tension with a connecting element of the means of shaping light or engages an indentation, creating an interlocking and/or friction connection that simplifies assembly and ensures secure mounting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mandrels are used to connect the means of shaping light to the means of reinforcement, then positioning and connection are achieved, but the mandrels can be damaged during assembly making them unusable

Engineering Contradiction:
Improveconnection reliabilityVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The connection system is divided into separate functional elements: the means of shaping light retains its mandrel for positioning, while the means of reinforcement receives protruding elements that perform the clamping function. This segmentation allows each component to be optimized independently, preventing damage to the positioning mandrel during assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Protruding elements act as intermediary components between the means of shaping light and the means of reinforcement. These elements engage with indentations on the mandrel to create the clamping connection, thereby protecting the mandrel from direct mechanical stress that could cause damage during assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Illumination intensity

If the means of reinforcement is made from materials suitable for optical properties, then optical requirements are met, but mechanical properties for permanent mounting and easy assembly are compromised

Engineering Contradiction:
Improveoptical propertiesVSAvoidmechanical properties
Core Design Contradiction:
Illumination intensityVSEase of manufacture

Solution Approach 1:

The system separates optical functions (means of shaping light) from mechanical functions (means of reinforcement with protruding elements). This allows the means of reinforcement to be manufactured from materials optimized purely for mechanical properties such as spring steel, without compromise to optical performance since the reinforcement does not interact with light.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the system have different material properties optimized for their specific functions. The means of shaping light uses materials with appropriate optical properties, while the means of reinforcement uses materials with superior mechanical properties for clamping and assembly, creating local optimization throughout the system.

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution allows for a more reliable and easier assembly process by providing a secure connection between the means of shaping light and the means of reinforcement, without the need for materials that must meet optical requirements.

Implementation Method 1

The means of reinforcement features at least one protruding element that comes into contact under tension with a connecting element of the means of shaping light or with a connecting element connected to such means and/or engages an indentation of the connecting element.

Methodology Applied
Scientific EffectInterlocking connection: Mechanical Fastener

Implementation Method 2

creating an interlocking and/or friction connection that simplifies assembly and ensures secure mounting

Methodology Applied
Scientific EffectFriction connection: Friction

Data Source

PatentUS12297972B2Arrangement for a vehicle lamp
Publication Date: 2025.05.13 HELLA GMBH & CO KGAA
  • US12297972B2 patent drawing
  • US12297972B2 patent drawing
  • US12297972B2 patent drawing

AI summary

An arrangement is provided for a vehicle lamp having a flexible printed circuit board, a means of reinforcement of one area of the flexible printed circuit board that is connected to the flexible printed circuit board, an LED that is arranged in this area on the printed circuit board, and a means of shaping light that can be emitted by the LED. The means of shaping light includes at least one light-shaping optical means, and the means of reinforcement is connected to the means of shaping light. The means of reinforcement includes at least one protruding element that comes into contact under tension with a connecting element of the means of shaping light or with a connecting element connected to such means and/or engages an indentation of the connecting element.