Lamp Holder Bonding With UV Fixing for Precise Alignment
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Solution Overview
Problem
Adhesive bonding methods for lamp holders on mountings often result in misalignment due to adhesive shrinkage, especially when cylindrical pins are used, leading to uneven adhesive distribution and subsequent lighting quality issues in light modules.
Innovation Solution
A method involving the use of a slowly curing adhesive and light-transparent fixing elements to create fixing bonding points, allowing UV light to cure the fixing adhesive at inaccessible locations, ensuring precise positioning and long-term stability of the adhesive bond without interfering with the initial alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a fixing adhesive is used to quickly fix components, then the fixing time is reduced and handling is enabled, but UV light cannot reach the fixing bonding points to cure the adhesive effectively
Solution Approach 1:
The patent introduces a light-guiding element as an intermediary between the UV light source and the fixing bonding points. This element guides UV light along its length to reach bonding points that are otherwise inaccessible to direct UV irradiation, enabling effective curing of the fixing adhesive in locations that would normally be shielded from light
Solution Approach 2:
The patent applies different adhesive types with different curing mechanisms to different locations: fast-curing UV-adhesive at the fixing bonding points (where quick fixation is needed) and slow-curing adhesive at the load-bearing bonding surfaces (where structural strength is needed). This local differentiation allows each bonding location to have optimized curing characteristics
2Manufacturing precision
If a slowly curing adhesive is used for the load-bearing bond, then positioning accuracy is maintained during curing, but the curing time is extended and handling is delayed
Solution Approach 1:
The patent divides the adhesive bonding into two separate functions: a fixing adhesive bond for rapid initial fixation (enabling handling) and a load-bearing adhesive bond for structural strength. The fixing bond uses fast-curing UV-adhesive applied at specific fixing bonding points, while the load-bearing bond uses slow-curing adhesive at the bonding surfaces, allowing each to perform its specialized function without compromising the other
3Ease of manufacture
If cylindrical pins are used for adhesive bonding, then component alignment is achieved, but uneven adhesive distribution occurs causing misalignment after curing
Solution Approach 1:
The patent applies fixing adhesive at the fixing bonding points before the load-bearing adhesive is fully cured. This preliminary fixing action creates initial bonding points that prevent the cylindrical pins from shifting during the subsequent curing of the load-bearing adhesive, compensating for the uneven adhesive distribution that would otherwise cause misalignment
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 method enables precise and stable adhesive bonding of complex components by maintaining the position of the lamp holder relative to the mounting, preventing misalignment and ensuring effective UV curing of the fixing adhesive, even in hard-to-reach areas, allowing for further handling and assembly of light modules.
Implementation Method 1
adhesively bonding the fixing element to the at least one component by means of introducing a fixing adhesive at fixing bonding points; transmitting light from a light source through the fixing element to cure the fixing adhesive at the fixing bonding points
Data Source
AI summary
A method for adhesively bonding components, in particular a lamp holder on a mounting, wherein the method includes at least the following steps: producing a load-bearing adhesive bond by means of introducing a slowly curing adhesive into or onto an adhesive receptacle between the components; arranging at least one light-transparent fixing element in physical contact with at least one of the components; adhesively bonding the fixing element to at least one of the components by means of introducing a fixing adhesive at fixing bonding points; transmitting light from a light source through the fixing element to cure the fixing adhesive at the fixing bonding points; and long-time curing of the slowly curing adhesive of the load-bearing adhesive bond.