Electronic Component Engaging Parts for Circuit Board Retention
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Solution Overview
Problem
Existing electronic components face challenges in securely holding circuit boards with varying thickness within allowed tolerance ranges, as protrusions either deform excessively or create gaps, leading to inadequate retention.
Innovation Solution
The electronic component features a rectangular case with pairs of first and second engaging parts, where the second engaging parts have longer protrusions and arms to accommodate boards of different thicknesses, ensuring secure holding through adjustable deformation and reduced gap distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protrusions are used to hold the circuit board, then the circuit board can be retained in the case, but when the thickness of the circuit board is thick within the tolerance range, the protrusions are largely deformed and cannot sufficiently hold the circuit board
Solution Approach 1:
The patent changes the geometric parameters of the protrusions by providing two different types: first protrusions with a first length and second protrusions with a second length greater than the first length. This parameter variation allows the protrusions to adapt to different circuit board thicknesses within the tolerance range, ensuring reliable holding capability while preventing excessive deformation.
2Strength
If the case is made larger to accommodate maximum protrusion deformation, then protrusion deformation can be absorbed, but the overall component size increases
Solution Approach 1:
Instead of increasing the case size, the patent changes the parameters of the protrusions themselves by providing two different lengths. The first protrusions handle normal thickness variations, while the second protrusions with greater length handle thicker circuit boards, thereby absorbing deformation without enlarging the case.
3Quantity of substance
If the thickness of the circuit board is thin within the tolerance range, then the circuit board can be manufactured with less material, but a gap is created between the circuit board and the protrusions, resulting in insufficient holding
Solution Approach 1:
The patent provides two types of protrusions with different lengths to match different circuit board thicknesses. For thinner circuit boards, the appropriate protrusion length ensures optimal contact and holding capability, preventing gaps while maintaining efficient material usage.
4Device complexity
If a single protrusion length is used for all circuit board thicknesses, then the design is simple, but it cannot sufficiently hold circuit boards with varying thicknesses within the tolerance range
Solution Approach 1:
The patent applies parameter changes by providing two different protrusion lengths instead of a single uniform length. This simple parameter variation enables the engaging part to adapt to different circuit board thicknesses within the tolerance range, ensuring reliable holding capability without significantly increasing design complexity.
Data Source
AI summary
An electronic component includes a pair of first engaging parts and a pair of second engaging parts. Both of the pair of first engaging parts are arranged at side surfaces of a case parallel to each other in opposition to each other. Each of the pair of second engaging parts is arranged adjacent to each of the pair of first engaging parts. Each of the first engaging parts includes a first arm and first protrusion, each of the second engaging parts includes a second arm and second protrusion, and a length of the second protrusion is longer than a length of the first protrusion.