Adjustable LED Testing Fixture with Spring-Loaded Electrodes
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Solution Overview
Problem
The widespread use of LEDs with varying specifications and models requires multiple testing fixtures, leading to high costs due to the need for specific fixtures for each model, and delays in testing new LED types.
Innovation Solution
An electrical device testing fixture with a stationary base, electrode holder, electrodes, stopper holder, and a restoring spring, allowing for adjustable electrode spacing and universal compatibility with different LED specifications, enabling efficient connection and testing of LEDs of various models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple different testing fixtures are provided for different specifications and models of LEDs, then testing coverage for various LED models is improved, but device complexity and cost increase
Solution Approach 1:
The testing fixture is designed with adjustable electrode spacing that can accommodate different LED specifications and models. The electrode holder can be positioned at various distances from the stationary base, allowing a single fixture to test multiple LED types (different models, chip sizes, and lead configurations) without requiring separate dedicated fixtures for each model.
Solution Approach 2:
The electrode holder is made movable relative to the stationary base through a restoring spring mechanism, enabling dynamic adjustment of the electrode spacing. This dynamic structure allows the fixture to adapt to different LED dimensions by adjusting the electrode position, thereby achieving universal testing capability with a single fixture rather than requiring multiple fixed fixtures.
2Device complexity
If a single testing fixture is used for all LED models, then device complexity is reduced, but adaptability to different LED specifications deteriorates
Solution Approach 1:
The electrode holder is designed to move along the stationary base with a restoring spring, enabling continuous adjustment of electrode spacing to match different LED dimensions. This dynamic adjustment capability allows a single fixture to accommodate various LED models, chip sizes, and lead configurations without requiring multiple specialized fixtures.
Solution Approach 2:
The key parameter being changed is the spacing between electrodes, which can be adjusted to match different LED specifications. By varying this geometric parameter, the single fixture can adapt to test different LED types including various chip sizes (0201, 0402, 0603, etc.) and lead configurations, maintaining testing coverage while reducing fixture variety.
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 fixture reduces testing costs by providing universal compatibility with multiple LED specifications, allowing for timely testing of new LED types by adjusting electrode spacing, ensuring reliable and efficient LED testing.
Implementation Method 1
a restoring spring provided between the stopper and the stopper holder
Data Source
AI summary
An electrical device testing fixture is disclosed. The electrical device testing fixture includes a stationary base, an electrode holder, a negative electrode and a positive electrode, a stopper holder, and a stopper; the stationary base is provided with two through wire mounting holes in which wires are routed; the electrode holder is provided with two separate long slots; the two electrodes are fixed in the two long slots respectively and movable in the slots respectively; an electrical device is connected between the two electrodes; a restoring spring is provided between the stopper and the stopper holder; and the stopper is configured to fix the electrical device. The electrical device testing fixture can address the high cost problem due to the requirement of different testing fixtures corresponding to different models of electrical devices.