Fuse Structure with Clamped LED Pins for Conductivity
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Solution Overview
Problem
Existing fuse designs with light emitting diodes for power disconnection indication face challenges in achieving proper electrical contact and yield due to difficulties in ensuring reliable connection between the diode and the metal plate.
Innovation Solution
A fuse structure with a casing that includes a top plate, a containing space, and electrically conductive plates with forked protrusions, where the light emitting element's pins are clamped between the casing and the conductive plates, enhancing contact area and conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dipole light emitting diode is electrically connected to a metal plate in the fuse using SMD packaging process, then the light indication function is achieved, but the electrical conductivity effect and product yield rate are adversely affected due to difficulty in assuring proper contact
Solution Approach 1:
The conducting portion is designed to be elastically deformable, allowing it to dynamically adapt to the light emitting element during assembly. The elastic deformation enables automatic adjustment and secure contact without requiring precise pre-positioning, thus improving both electrical conductivity and manufacturing ease
Solution Approach 2:
The elastic conducting portion performs self-alignment and self-contact functions. When the light emitting element is inserted, the conducting portion automatically deforms to make proper contact with the element's terminal, eliminating the need for complex external alignment mechanisms and improving yield rate
2Reliability
If the light emitting element is installed separately after fuse assembly, then flexibility is maintained, but the contact area with fuse component is insufficient leading to poor electrical conductivity
Solution Approach 1:
The light emitting element installation is merged with the fuse assembly process. The elastic conducting portion is pre-integrated into the fuse structure, and the light emitting element is installed simultaneously during the same manufacturing operation, achieving both large contact area and simplified assembly
Solution Approach 2:
The elastic conducting portion is pre-configured in the fuse structure before light emitting element installation. This preliminary preparation ensures that when the light emitting element is installed, immediate and reliable electrical contact is achieved, improving conductivity while maintaining assembly simplicity
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 design improves electrical conductivity and product yield by ensuring secure and reliable contact between the light emitting element and the fuse component through a one-time manufacturing process, enhancing the power disconnection light emitting function.
Implementation Method 1
a light emitting element is installed in the fuse to facilitate maintenance and repair and indicate a damaged fuse
Implementation Method 2
one end of the elastic conducting portion is embedded in the containing space and the other end of the elastic conducting portion protruded from the top plate
Data Source
AI summary
A fuse structure includes a casing, a fuse component and a light emitting element having pins. The casing includes a top plate, a containing space disposed below the top plate and two openings formed on the top plate. The fuse component includes two electrically conductive plates and a fuse filament, and each electrically conductive plate has a conducting portion protruded from an upper end of the electrically conductive plate, and the conducting portions are inserted into the two openings respectively. The top plate includes two compressing portions protruded from the bottom of the top plate and arranged alternately with the two conducting portions, such that an interval is formed between an external edge of each compressing portion and an internal edge of each corresponding conducting portion, and the pins of the light emitting element are clamped in the interval.