Rail-Mounted LED Lighting Module with Integrated Spring Connectors

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Solution Overview

Problem

Existing lighting modules mounted on rails face challenges in providing a simple, stable, and customizable electrical, mechanical, and thermal connection, requiring additional operations and specialized devices for handling and reconfiguration to accommodate varying power levels.

Innovation Solution

A lighting module with a support element featuring integrated spring-action electrical connectors and a resilient system for retaining the circuit board, allowing for snap-engagement with a rail and optional connection to an auxiliary heat sink, enabling compact, stable mounting with integrated optical and electronic functions without additional fixing devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If dedicated lighting modules are produced to meet specific power dissipation requirements, then power dissipation capability is improved, but compatibility between modules deteriorates

Engineering Contradiction:
Improvepower dissipation capabilityVSAvoidmodule compatibility
Core Design Contradiction:
PowerVSAdaptability or versatility

Solution Approach 1:

The support element is designed with multiple functions integrated into a single component: it provides mechanical support for the circuit board, electrical connection through integrated spring-action connectors, thermal management via heat dissipation structures, and snap-engagement with the rail. This multi-functional design allows a single module type to serve multiple power requirements without sacrificing compatibility.

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

2Adaptability or versatility

If additional fixing devices and operations are used to accommodate varying power levels, then power configuration flexibility is improved, but device complexity and ease of operation deteriorate

Engineering Contradiction:
Improvepower configuration flexibilityVSAvoidfixing device complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines electrical connectors, mechanical retention, and thermal management functions into the support element itself. The spring-action connectors are integrated directly into the support structure, eliminating the need for separate wiring harnesses or connection devices. This merging of functions reduces overall device complexity while maintaining configuration flexibility.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The spring-action connectors provide dynamic electrical connection that can accommodate variations in power requirements. The resilient nature of the spring connectors allows for easy engagement and disengagement, enabling rapid reconfiguration of power levels without complex fixing operations.

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If a stable mounting structure is created with integrated functions, then mounting stability is improved, but manufacturing complexity may worsen

Engineering Contradiction:
Improvemounting stabilityVSAvoidmanufacturing simplicity
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The support element is designed as a modular component that can be manufactured separately and then assembled with the circuit board and optical devices. This segmentation allows each component to be optimized for its specific function while maintaining overall manufacturing simplicity. The support element itself can be produced using standard manufacturing processes for resilient structural components.

Inventive Principle:
Principle #1Segmentation

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 provides a compact, stable, and easy-to-handle mounting structure that simplifies installation and replacement, allowing for flexible power configurations and efficient heat dissipation, eliminating the need for extra connection devices and facilitating modular reconfiguration.

Implementation Method 1

integrated spring-action, electrical connectors

Methodology Applied
Scientific EffectSpring action: Spring

Implementation Method 2

resilient system for retaining the circuit board

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

a resilient system for retaining the circuit board

Methodology Applied
Scientific EffectResilience: Elasticity

Implementation Method 4

connecting the module to an auxiliary heat sink only when the installed power is such as to exceed the intrinsic dissipation capacity of the module

Methodology Applied
Scientific EffectHeat dissipation: Heat Sink

Data Source

PatentEP2615700B1Lighting module
Publication Date: 2015.03.11 OSRAM GMBH
  • EP2615700B1 patent drawingFigure 1
  • EP2615700B1 patent drawingFigure 2a~2c
  • EP2615700B1 patent drawingFigure 3~4

AI summary

A lighting module (10), for example of the LED type, for mounting on a rail (R) comprises a circuit board (12) for carrying one or more light radiation sources (L), and a support structure (14) with a first side (14a) facing the rail (R) and carrying the aforementioned circuit board (12) and a second side (14b) situated on the opposite side to the rail (R) and carrying one or more lenses (16) for the light radiation sources (L). The support structure (14) carries one or more flexible electrical contacts (18) having a first end (18a) protruding from the first side (14a) of the support structure (14) for making contact with an electrical line (T) provided on the rail (R) and a second end (18b) which extends towards the circuit board (12) so as to provide electrical contact for the light radiation source or sources (L).