Holder Wire Routing and Thermal Management for LED Downlights

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Solution Overview

Problem

The assembly and arrangement of wires in LED light sources are complicated due to their structure, making it difficult to supply power efficiently and reliably, especially in lighting devices like downlights where a neat and flush installation is required.

Innovation Solution

A holder and lighting device design that includes a holder with an inclined surface and supporting portions for a reflector, a channel system to guide wires, and a thermal pad for heat management, along with a wire bushing to secure wires, facilitating efficient electrical connection and heat dissipation while maintaining a neat installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wires or leads are used to supply power to LED light sources, then electrical connection is achieved, but assembly and arrangement become complicated due to the structure of wires or leads

Engineering Contradiction:
Improveelectrical connectionVSAvoidassembly and arrangement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the wire arrangement problem from the overall assembly by providing a dedicated wire passage structure within the holder. The wire passage separates and guides wires through a defined path, eliminating the need for complex external wire management and simplifying assembly while maintaining reliable electrical connections to LED light sources.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The holder acts as an intermediary component between the power supply and LED light sources. It integrates wire passages, mounting structures, and electrical connection points into a single component that mediates the complex interactions between wires, LEDs, and the housing, thereby simplifying the overall assembly process while ensuring reliable electrical connections.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If a holder structure with reflector support is used, then LED light source positioning is improved, but wire arrangement becomes more difficult

Engineering Contradiction:
ImproveLED light source positioningVSAvoidwire arrangement
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent merges the holder functions by integrating reflector support structures, LED mounting positions, and wire passages into a single unified component. The holder simultaneously provides precise positioning for LEDs and reflectors while incorporating internal passages for wire routing, thereby achieving manufacturing precision without compromising wire arrangement ease.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The wire passages are designed to extend in multiple dimensions within the holder structure, allowing wires to be routed through three-dimensional space rather than being constrained to a single plane. This dimensional approach enables wire arrangement without interfering with the precise positioning of LEDs and reflectors, resolving the contradiction between manufacturing precision and operational ease.

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

3Reliability

If thermal management is enhanced for LED light sources, then reliability is improved, but device structure becomes more complex

Engineering Contradiction:
Improvethermal reliabilityVSAvoiddevice structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The holder is designed as a multi-functional component that simultaneously provides mechanical support for LEDs and reflectors, thermal management through integrated heat dissipation structures, and wire routing through internal passages. By combining these functions into a single universal component, thermal reliability is enhanced without proportionally increasing device structure complexity.

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

Solution Approach 2:

The thermal management structures are nested within the holder itself rather than being separate external components. Heat dissipation features such as thermal pathways and cooling channels are integrated into the holder's internal structure, allowing thermal management to be embedded within the existing device architecture without adding significant structural complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

The solution simplifies the arrangement of wires, enhances heat sinking, and ensures reliable electrical connections, improving the efficiency and reliability of LED light sources in lighting devices, particularly in downlight installations.

Implementation Method 1

a thermal pad for heat management

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS10408398B2Holder and lighting device including the same
Publication Date: 2019.09.10 SUZHOU LEKIN SEMICON CO LTD
  • US10408398B2 patent drawing
  • US10408398B2 patent drawing
  • US10408398B2 patent drawing

AI summary

A holder and a lighting device including the holder are provided. The holder may include a holder body having a hole, an outlet provided in a side of the holder body, and a channel provided in the holder body to connect the hole with the outlet. The channel may include a first channel provided in a circumferential direction and having one side connected to the outlet, a second channel that guides one of two wires connected to a light source module to the first channel, and a third channel that guides another one of the two wires to the first channel.