Lighting Device Clip Bent Portion Fixation

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Solution Overview

Problem

Existing lighting devices face challenges in stable fixation to outer fixtures, high material costs, inefficient light extraction, and risk of accidental drops or damage to fixtures.

Innovation Solution

A lighting device design featuring a body with a side wall and base, a light source below the base, a power supply on the base, and a clip with bent portions for secure attachment to outer fixtures, along with an optical plate and reflective member for improved light distribution and reduced heat transfer to the power supply.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional fixation method is used, then the lighting device can be installed, but it cannot be stably fixed to the outer fixture

Engineering Contradiction:

Improvefixation stabilityVSAvoidfixation structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The clip is designed as a resilient component that can dynamically adapt to the outer fixture surface. The bent portion allows the clip to flex and conform during installation, while the resilient nature provides continuous contact pressure to maintain stable fixation without requiring complex adjustment mechanisms.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The fixation structure is divided into distinct functional segments: the connection portion attaches to the lighting device body, the bent portion provides adaptation and contact with the outer fixture, and the extension portion bridges between them. This segmentation allows each part to perform its specific function optimally without increasing overall complexity.

Inventive Principle:

Principle #1Segmentation

2Reliability

If expensive materials are used, then the lighting device can be manufactured, but material costs are high

Engineering Contradiction:

Improvefixation reliabilityVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The clip is designed as a simple, inexpensive component that can be manufactured from common resilient materials. Rather than using expensive specialized fixation hardware, the invention employs a simple resilient clip that achieves reliable fixation through its geometric design and material properties, significantly reducing material costs.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The fixation reliability is achieved not through expensive materials but by optimizing geometric parameters of the clip: the curvature radius of the bent portion, the length and orientation of the extension portion, and the thickness distribution. These parameter optimizations allow standard materials to achieve the required fixation performance.

Inventive Principle:

Principle #35Parameter changes

3Volume of moving object

If the light source is positioned close to the power supply, then the device structure is compact, but heat transfer from light source to power supply increases

Engineering Contradiction:

Improvedevice compactnessVSAvoidheat transfer

Core Design Contradiction:

Volume of moving objectVSTemperature

Solution Approach 1:

The patent extracts the heat management function from the overall device structure by introducing a dedicated heat dissipation member positioned between the light source and power supply. This separate component specifically addresses heat transfer without requiring the light source and power supply to be physically separated, maintaining device compactness while reducing thermal coupling.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

A heat dissipation member is introduced as an intermediary element between the light source and power supply. This intermediary component facilitates thermal management by providing a controlled thermal pathway, allowing heat to be dissipated away from the power supply without requiring large physical separation distances.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Stability of the object's composition

If the clip extension portion has high curvature, then it conforms to the outer fixture, but it may damage the outer fixture

Engineering Contradiction:

Improvecontact stabilityVSAvoidfixture damage risk

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The bent portion of the clip is designed with a specific curvature radius that is large enough to prevent concentrated stress on the outer fixture. This geometric design acts as a built-in cushioning mechanism, distributing contact forces over a larger area and preventing damage to the outer fixture while maintaining stable contact.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The curvature radius of the bent portion is optimized as a key geometric parameter. By selecting an appropriate radius value, the design achieves a balance: the clip is sufficiently curved to conform to the outer fixture surface for stable contact, but not so curved that it creates stress concentrations that could damage the fixture.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS10539295B2Lighting device

Publication Date: 2020.01.21 SUZHOU LEKIN SEMICON CO LTD

AI summary

The disclosure relates to a lighting device. The lighting device includes a body including a side wall and a base disposed on the side wall; a light source which is disposed below the base of the body; a power supply which is disposed on the base of the body to supply a power to the light source; and a clip including a connection portion and an extension portion extending from the connection portion and disposed on the side wall of the body, wherein the extension portion of the clip has at least one bent portion which is bent toward the side wall of the body.