Split Downlight Thermal Management via Spring Connector
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Solution Overview
Problem
Conventional downlight devices have inadequate heat dissipation due to integrated lamp caps and complex production processes, leading to reduced lifespan and increased production costs.
Innovation Solution
A split type downlight apparatus with a separate driving component and light body assembly connected by a spring, allowing for improved heat dissipation and simplified production and assembly, featuring a driving board in a housing, a light assembly in a shell, and an electrical connector for easy assembly and repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If lamp cap and light body are integrated with terminals, then structural simplicity is achieved, but heat dissipation performance deteriorates
Solution Approach 1:
The downlight is divided into separate modules: driving component (housing with driving board) and light body assembly (light shell with light assembly), connected via spring and electrical connector. This segmentation allows each module to be optimized independently for heat dissipation while maintaining overall structural integrity.
Solution Approach 2:
The driving board is extracted from the traditional integrated lamp cap structure and placed in a separate driving housing with dedicated heat dissipation design. The light assembly is also separated into its own housing, allowing both components to have optimized thermal management paths away from each other.
2Adaptability or versatility
If multiple downlight components are used, then functional requirements are met, but production process complexity increases
Solution Approach 1:
The product is segmented into two main assemblies (driving component and light body assembly) that can be produced independently using standardized processes, then quickly assembled together. This reduces production complexity compared to integrating all components in a single complex manufacturing process.
Solution Approach 2:
The spring connector serves multiple functions: mechanical connection between assemblies, electrical connection via integrated electrical connector, and heat dissipation pathway. This multi-functionality reduces the number of separate components needed, simplifying production.
3Reliability
If lamp cap is connected to light body through terminals, then electrical connection is achieved, but heat dissipation deteriorates
Solution Approach 1:
The spring acts as an intermediary connection between the driving housing and light shell, providing both mechanical support and thermal conduction pathway. The electrical connector serves as an intermediary for electrical connection while the spring provides an additional thermal pathway, separating the electrical and thermal management functions.
Solution Approach 2:
The spring's elastic properties allow it to accommodate thermal expansion and contraction of the connected components during operation, maintaining reliable electrical and mechanical connections while facilitating heat dissipation through its metal construction.
4Duration of action of moving object
If downlight works continuously for long time, then lighting function is maintained, but temperature increases shortening lifespan
Solution Approach 1:
The spring connection, which could be seen as adding structural complexity, is converted into a beneficial heat dissipation pathway. The metal spring conducts heat away from the driving board and light assembly, transforming a potential structural weakness into a thermal management advantage that extends component lifespan during continuous operation.
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
Enhances heat dissipation, prolongs the lifespan of components, simplifies the production process, and reduces production costs by allowing separate production and assembly of the driving and light modules.
Implementation Method 1
Two ends of the spring are hooked in the bottom of the driving housing and the top of the light shell respectively. The driving housing connects to the light shell through the spring.
Implementation Method 2
One end of the electrical connector electrically connects to the driving component. The other end of the electrical connector electrically connects to the light assembly.
Data Source
AI summary
A split type downlight apparatus includes a lamp cap, a driving component, a light body assembly, a spring and an electrical connector. The light body assembly includes a light shell and a light assembly fixed in the light shell. One end of the electrical connector electrically connects to the driving component. The other end of the electrical connector electrically connects to the light assembly. Two ends of the spring are hooked in the bottom of the driving housing and the top of the light shell respectively. The driving housing connects to the light shell through the spring. The driving board and the light assembly are separated.