LED Snap-Fit Receiver Eliminates Soldering Damage
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Solution Overview
Problem
The existing backlight devices using LEDs face issues with damage during the high-temperature soldering process and require complex manual maintenance due to poor solder joints, making assembly and maintenance inefficient and time-consuming.
Innovation Solution
A light source module comprising an LED with a locating element and an LED receiver with a snap-fitting structure, allowing the LED to be elastically snap-fitted into the receiver, eliminating the need for soldering and enabling easy assembly and replacement, while also providing a conductive connection through elastic pieces and a heat dissipating support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LEDs are soldered onto PCBs through a soldering process, then electrical connection is achieved, but the LEDs tend to be damaged due to high temperature and poor solder joints may be generated
Solution Approach 1:
The patent replaces the thermal soldering process with a mechanical snap-fitting structure. The LED receiver includes a receiving cavity with a snap-fitting structure that mechanically secures the LED without requiring soldering, thereby eliminating high-temperature damage while achieving both mechanical fixation and electrical connection through the snap-fitting mechanism
Solution Approach 2:
The patent introduces an elastic piece as an intermediary component between the LED and the PCB. This elastic piece serves as both a mechanical connector and an electrical conductor, replacing the need for solder joints while providing reliable electrical connection and mechanical fixation simultaneously
2Ease of repair
If manual removal of solder joints is performed for maintenance, then LED replacement is possible, but the maintenance process becomes very complex, inefficient and time-consuming
Solution Approach 1:
The patent segments the LED assembly into separable components: the LED, the receiver with snap-fitting structure, and the PCB. This modular design allows the LED to be easily removed and replaced by simply detaching the snap-fitting structure, eliminating the need for complex soldering removal procedures and significantly reducing maintenance time
Solution Approach 2:
The patent replaces the permanent solder joint mechanism with a reversible mechanical snap-fitting system. This allows for easy disassembly and reassembly of the LED, enabling rapid maintenance and replacement without the complexity of manual soldering removal
3Ease of manufacture
If snap-fitting structure is used to assemble LED, then assembly complexity is reduced, but electrical connection reliability must be maintained
Solution Approach 1:
The patent designs the snap-fitting structure to serve multiple functions simultaneously: mechanical fixation of the LED in the receiver, application of contact pressure for electrical connection, and structural alignment. This multi-functional design ensures reliable electrical connection while maintaining assembly simplicity
Solution Approach 2:
The elastic piece acts as an intermediary that transfers mechanical pressure from the snap-fitting structure to the LED contact points, ensuring stable electrical connection. The elasticity of the piece allows it to maintain consistent contact pressure while accommodating minor dimensional variations
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 simplifies the assembly and maintenance of LEDs by eliminating the soldering process, reducing damage risks and making the process more efficient, and allows for easy electrical connection and heat dissipation.
Implementation Method 1
the conductive portion is an elastic piece having elasticity, and the conductive area is a bare copper area disposed on the PCB. An end of the elastic piece is electrically connected to an internal chip of the LED, and the other end of the elastic piece makes close and elastic contact with and is electrically connected to the bare copper area
Implementation Method 2
the LED receiver is a heat dissipating support. the heat dissipating support is provided with heat dissipating fins at a side opposite to the receiving portion
Data Source
AI summary
A light source module is disclosed. The light source module comprises a light emitting diode (LED) and an LED receiver. The LED is provided with a locating element on a side surface thereof. The LED receiver has a receiving portion, and a snap-fitting structure is disposed on a side surface of the receiving portion to mate with the locating element so that the LED can be located in the receiving portion of the LED receiver. An LED receiver and a backlight device are also disclosed. The light source module and the LED receiver of the present invention allow for optimization of the assembling process of the LED.