Modular Luminaire with Hook-Shaped Frame for Secure Ceiling Mounting

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Solution Overview

Problem

Existing lighting apparatuses using light-emitting diodes as a light source face difficulties in installation due to weight, complexity of lead wires, and potential for electrical interference, leading to insecure and cumbersome installation processes.

Innovation Solution

A luminaire design featuring a light-emitting unit with a base substrate, reflector, and terminal unit, supported by a main body frame and a support frame with a groove-shaped receiving place, allowing for easy assembly and secure attachment to a ceiling, with a simplified lead wire connection system that minimizes interference and exposure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a large number of light-emitting diodes are used in a large-size lighting apparatus, then the lighting coverage and illumination intensity are improved, but the lead wires become complex and are liable to interfere with each other, increasing device complexity and installation difficulty

Engineering Contradiction:
Improvelighting coverageVSAvoidlead wire complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The lighting apparatus is divided into multiple independently controllable light-emitting units, each with its own lead wire connections. This segmentation allows each unit to be wired separately, reducing overall wire complexity while maintaining large-scale illumination coverage through modular arrangement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from planar LED arrangements to three-dimensional spatial configurations of light-emitting units. By arranging units in multiple dimensions and levels, the system achieves extensive lighting coverage without proportionally increasing lead wire complexity, as units can be positioned to share connection pathways.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Area of stationary object

If the lighting apparatus is installed on a ceiling in high places, then the lighting coverage area is improved, but the installation operation becomes difficult and requires complex fixing means

Engineering Contradiction:
Improvelighting coverage areaVSAvoidinstallation operation
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The lighting apparatus is divided into multiple detachable light-emitting units that can be installed separately on the ceiling. This segmentation allows workers to install smaller, lighter units individually at high locations without needing to handle the entire large apparatus, significantly improving installation safety and ease of operation while achieving extensive coverage through coordinated arrangement of multiple units.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If a common fixing method using spring elasticity is used to attach the main unit to the ceiling edge, then the installation process is simplified, but the apparatus cannot be securely installed when the equipment is very heavy

Engineering Contradiction:
Improveinstallation processVSAvoidinstallation security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The apparatus is divided into multiple separate light-emitting units, each weighing less than the total apparatus. These smaller units can be securely attached to the ceiling using simple spring-based fixing methods, as the reduced weight of individual units allows the spring elasticity to provide sufficient holding force, thereby maintaining both installation simplicity and security.

Inventive Principle:
Principle #1Segmentation

4Productivity

If a large number of lead wires are connected in vertical and horizontal directions, then the light-emitting diodes can be powered, but the electrical wires and lead wires are exposed to the rear side and disturb the installation

Engineering Contradiction:
Improveelectrical connectionVSAvoidinstallation workability
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The lead wires are routed through the internal structures of the light-emitting units and along the support frames, nesting the wiring within the apparatus framework rather than leaving it exposed. This nesting approach maintains all necessary electrical connections while keeping the wiring concealed and non-interfering with installation and maintenance operations.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP2194313B1Luminaire
Publication Date: 2011.09.07 TOSHIBA LIGHTING & TECHNOLOGY CORP
  • EP2194313B1 patent drawingFigure 1~3
  • EP2194313B1 patent drawingFigure 4~6
  • EP2194313B1 patent drawingFigure 7

AI summary

A luminaire (10) includes a light-emitting unit (A), a main body frame (14), a support frame (16), and a lighting unit (17). The light-emitting unit (A) mounts light-emitting elements (11). The main body frame (14) supports the light-emitting unit (A), and is formed rectangular having a hook-shaped engaging piece (14d) on one side. The support frame (16) is formed rectangular surrounding the outer periphery of the main body frame (14), and has a groove-shaped receiving place (16d) to engage with the engaging piece (14d) of the main body frame (14), on one internal side. The lighting unit (17) turns on the light-emitting elements (11).