LED Lighting Device Latching Cover Anti-Theft

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Solution Overview

Problem

Existing lighting devices face issues with component displacement during maintenance, affecting light output, and lack of secure, non-destructive cover detachment for safety and anti-theft concerns.

Innovation Solution

A lighting device with a latching connection between the cover and housing, preventing intentional or unintentional removal of the cover, ensuring constant light radiation and enhanced safety, featuring a reflector element for targeted light emission and a sealing element for moisture protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the cover is made detachable for maintenance, then ease of repair is improved, but component displacement and light output variation occur

Engineering Contradiction:
Improvecover detachabilityVSAvoidcomponent position accuracy
Core Design Contradiction:
Ease of repairVSManufacturing precision

Solution Approach 1:

The lighting device is divided into modular components (housing, cover, LED module) that can be independently manufactured and assembled. The cover is designed as a separate detachable component with integrated sealing and latching features, allowing maintenance while minimizing displacement through precise mating surfaces and定位 structures.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover and housing are equipped with pre-formed sealing elements and latching mechanisms that are integrated during manufacturing. The sealing ribs and latching hooks are built into the cover structure beforehand, ensuring that when the cover is detached and reattached, the components return to their original positions with maintained sealing and lighting characteristics.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If the cover is made detachable for maintenance, then ease of operation is improved, but safety and anti-theft protection deteriorate

Engineering Contradiction:
Improvecover accessibilityVSAvoidsafety and anti-theft protection
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The latching mechanism transitions from a permanently fixed connection to a controlled dynamic connection. The cover can be easily opened during operation using the integrated release mechanism, but during normal use, the latching hooks engage with the housing to provide secure protection. The system dynamically adapts between accessible and protected states based on operational needs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The latching mechanism acts as an intermediary between the cover and housing, providing controlled access. The latching hooks and receptacles create a mechanical interface that allows intentional opening by users while preventing unauthorized removal or accidental detachment, thus mediating between ease of operation and safety requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If a secure latching connection is used to prevent cover removal, then safety and anti-theft protection are improved, but ease of repair deteriorates

Engineering Contradiction:
Improvesafety and anti-theft protectionVSAvoidcover detachability
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The latching mechanism is designed with dynamic characteristics that allow it to provide strong secure protection during normal operation while enabling easy opening when needed for maintenance. The spring-loaded latching hooks can be easily depressed to release the cover, transforming from a secure locked state to an accessible state without requiring destructive forces.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The latching mechanism is designed to be self-operating for both locking and unlocking functions. The cover itself contains the release mechanism that allows users to easily open the latching connection without requiring external tools or assistance, while still providing secure protection when closed.

Inventive Principle:
Principle #25Self-service

4Reliability

If the lighting device is sealed for life to maintain constant light radiation, then reliability is improved, but ease of repair deteriorates

Engineering Contradiction:
Improvelight radiation consistencyVSAvoidcomponent accessibility
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The lighting device is designed with preliminary considerations for long-term reliability, incorporating high-quality sealing elements and robust latching mechanisms during manufacturing. The sealing ribs and gaskets are integrated into the cover structure beforehand, creating a sealed environment that maintains constant light radiation and protects components throughout the LED service life, eliminating the need for frequent maintenance.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The sealed-for-life design is not permanent but dynamic, allowing the cover to be opened easily when maintenance is truly needed while providing sealed protection during operation. The latching mechanism enables the system to transition between sealed and accessible states, balancing reliability during operation with repairability when necessary.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2868964B1Illumination device
Publication Date: 2016.08.24 SITECO BELEUCHTUNGSTECHNIK GMBH
  • EP2868964B1 patent drawingFigure 1
  • EP2868964B1 patent drawingFigure 2~3
  • EP2868964B1 patent drawingFigure 4~5

AI summary

The invention relates to a lighting device with a housing (1) in which a light source (3) is arranged, wherein the light source comprises one or more LEDs, and a translucent cover (2), wherein the cover (2) is connected to the housing (1) in the assembled state by means of a snap-fit ​​connection in such a way that the cover (2) cannot be detached from the housing (1) without damage.