Lighting Device Locking Member Circuit Board Fixation
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Solution Overview
Problem
Conventional lighting devices require fastening members or adhesives for fixation, which complicates manufacturing, affects circuit layout, and poses safety risks due to thermal expansion and weight issues.
Innovation Solution
A lighting device design that uses a specially configured locking member to securely attach the circuit board to the housing without additional fastening members or adhesives, leveraging geometric and mechanical principles for a press-fit mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If fastening members such as screws are used to fix the lighting device, then the fixation strength is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The locking member integrates multiple functions: it serves as both a fastening element and a positioning element. The locking member combines the functions of mechanical fastening and electrical component positioning into a single integrated component, eliminating the need for separate screws and positioning structures.
Solution Approach 2:
The locking member is designed to perform multiple functions simultaneously: it provides mechanical fixation, positions the circuit board, and maintains thermal contact. This multi-functional design reduces the total number of components needed in the assembly.
2Strength
If a large number of screws are used to fix the lighting device, then the fixation strength is improved, but the circuit layout is adversely affected and manufacturing efficiency is reduced
Solution Approach 1:
The invention extracts the fastening function from the traditional screw-based system and integrates it into a single locking member that is part of the housing structure. This extraction simplifies the assembly process and improves manufacturing efficiency.
Solution Approach 2:
The locking member is designed with segmented features including protrusions that engage with corresponding grooves in the circuit board, allowing for modular assembly while maintaining strong fixation.
3Ease of manufacture
If adhesive is used to fix the lighting device, then the fixation process is simplified, but safety risks arise due to thermal expansion and weight issues
Solution Approach 1:
The invention replaces the chemical bonding mechanism of adhesives with a mechanical locking system. The locking member uses geometric interlocking features and elastic deformation to provide reliable mechanical fixation that is resistant to thermal expansion and weight loads.
Solution Approach 2:
The locking member utilizes elastic deformation as a key parameter, allowing it to flex during assembly and then maintain constant contact pressure on the circuit board, providing reliable fixation under varying thermal and mechanical conditions.
4Adaptability or versatility
If the lighting device is made larger to accommodate more components, then the functionality is improved, but the risk of accidents and separation due to adhesive failure increases
Solution Approach 1:
The locking member is pre-installed in the housing before the circuit board is placed. This preliminary action ensures that the mechanical locking structure is already in position to provide immediate support and fixation, preventing separation even in large-scale devices.
Solution Approach 2:
The locking member incorporates curved or inclined surfaces that allow for self-aligning and self-locking during assembly, ensuring reliable fixation regardless of the device size or weight.
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
This solution reduces component count, simplifies installation and maintenance, and mitigates safety hazards associated with traditional fixation methods while maintaining thermal conductivity.
Implementation Method 1
The locking member may be an elastic clamping member, which clamps the circuit board and the second section
Implementation Method 2
The side walls support the locking member. The side wall is able to provide side supporting force for the locking member, which partially converts the supporting force to a pressing force for pressing the circuit board
Data Source
AI summary
Various embodiments may relate to a lighting device, including a housing, at least one light source, and a circuit board carrying the at least one light source. The housing defines a cavity for accommodating the at least one light source and the circuit board. The housing includes a bottom for carrying the circuit board. The lighting device further includes at least one separate mountable locking member, which is partially supported on the housing and presses the circuit board on the bottom. In addition, various embodiments further relates to an illuminating device including the lighting device.