Lamp Bar Fixation Device for Backlight Source Assembly
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Solution Overview
Problem
The existing methods for assembling and aligning lamp bars in liquid crystal display devices, such as using double-sided adhesive tape or screws, are complicated and inefficient, often resulting in improper installation and damage during rework.
Innovation Solution
A lamp bar fixation device comprising a back plate with a positioning slot, a positioning clamp, and a spacer that securely fixes the lamp bar without manual alignment, allowing for easy assembly, accurate alignment, and efficient detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If double-sided adhesive tape or screw is used to connect lamp bar and back plate, then the connection is secure, but the assembling process becomes complicated and efficiency is reduced
Solution Approach 1:
The patent extracts the fastening function from the back plate and concentrates it into a dedicated positioning clamp component. This clamp is pre-installed on the back plate and provides both positioning and fastening functions, eliminating the need for separate adhesive tape or screw operations during assembly.
Solution Approach 2:
The positioning clamp is pre-installed on the back plate before the lamp bar assembly process. This preliminary action ensures that the lamp bar can be directly positioned and fixed without requiring subsequent fastening operations, thereby improving assembling efficiency while maintaining connection security.
2Manufacturing precision
If manual alignment is performed during lamp bar assembly, then positioning accuracy can be achieved, but the process becomes time-consuming and complex
Solution Approach 1:
The positioning slot and positioning clamp are designed with complementary geometries that enable the lamp bar to self-align and self-position when inserted. The T-shaped cross-section of the positioning slot matches the corresponding feature on the lamp bar, automatically ensuring correct positioning without manual intervention.
Solution Approach 2:
The positioning slot features an asymmetric T-shaped cross-section with a width that precisely matches the lamp bar dimension. This asymmetric design ensures that the lamp bar can only be installed in the correct orientation and position, eliminating the need for manual alignment while maintaining high positioning accuracy.
3Stability of the object's composition
If lamp bar is firmly fixed using traditional methods, then installation stability is ensured, but rework becomes difficult and lamp bar is prone to damage
Solution Approach 1:
The positioning clamp is designed with a resilient or removable feature that allows it to be easily detached from the back plate when rework is needed. This dynamic design enables the lamp bar to be removed and reinstalled without damaging either the lamp bar or the back plate, while maintaining stable installation during normal operation.
4Device complexity
If small contact area is used for fixing lamp bar, then the fixation device is simple, but heat dispersion performance is poor
Solution Approach 1:
The positioning clamp is designed to simultaneously perform multiple functions: mechanical fastening, thermal conduction, and positioning. By merging these functions into a single component with extended contact area between the lamp bar and back plate, the device achieves good heat dispersion performance without increasing overall structural complexity.
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 improves assembling efficiency, reduces the risk of damage during rework, and enhances heat dispersion performance by providing a large heat conducting area, enabling the lamp bar to be replaced without removing the backlight source or liquid crystal module.
Implementation Method 1
the lamp bar fixation device has a large heat conducting area and thereby has good heat dispersion performance
Data Source
AI summary
A lamp bar fixation device and a backlight source provided with the lamp bar fixation device are provided. The lamp bar fixation device comprises a back plate, a positioning clamp and a spacer, wherein the back plate is provided thereon with a positioning slot for receiving a lamp bar, the positioning clamp is positioned above the positioning slot, and the spacer is detachably mounted in the positioning clamp so as to fix the lamp bar. The lamp bar fixation device effectively improves assembling efficiency of the lamp bar and has a good heat dispersion performance. Meanwhile, the lamp bar fixation device facilitates the detachment of the lamp bar, and enables the lamp bar to be replaced without a risk of being damaged, and rework performance can be improved.