Connector Module Fixing Structure for Space-Saving PCB Assembly
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Solution Overview
Problem
Conventional electronic assemblies require additional space due to the use of pressing plates and screws, and the fixation of connector modules to circuit boards creates holes that affect layout and makes it difficult to remove socket connectors.
Innovation Solution
An electronic assembly design featuring a connector module with an engagement structure and a fixing assembly that includes a shoulder on the module housing and a fastener, eliminating the need for pressing plates and allowing the shell to be fixed via solder pads, reducing space usage and enabling easy disassembly of socket connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional pressure-exerting device including pressing plate, spring, and screw is used to secure the connector module, then the connector module is firmly fixed to the circuit board, but the electronic assembly occupies a larger space
Solution Approach 1:
The patent integrates the fixation function directly into the module housing by forming an engagement structure (protrusion and groove) as part of the housing itself, eliminating the need for separate pressing plates, springs, and screws. This merging of functions reduces the number of components and minimizes the space required for fixation mechanisms.
Solution Approach 2:
The patent extracts and removes the unnecessary pressure-exerting device components (pressing plate, spring, screw) from the assembly, retaining only the essential engagement structure formed on the module housing that provides sufficient fixation without the bulky additional components.
2Reliability
If the shell is fixed to the circuit board by inserting pins into holes, then the shell is securely attached, but a large number of holes are formed in the circuit board affecting the layout of leads or traces
Solution Approach 1:
The patent removes the pin insertion method entirely and replaces it with an engagement structure formed directly on the module housing that interfaces with the circuit board surface, eliminating the need to drill holes through the circuit board and preserving lead and trace layout flexibility.
Solution Approach 2:
The engagement structure is formed locally on the module housing at specific positions where fixation is needed, providing secure attachment without requiring global modifications to the circuit board such as drilling holes across multiple locations.
3Object-affected harmful factors
If there is a large gap between the shell and the connector module, then the shell provides protection, but the connector module becomes prone to tilt during pre-installation
Solution Approach 1:
The engagement structure is pre-formed on the module housing during manufacturing, establishing a stable connection interface before the actual assembly process. This preliminary structural feature ensures that the connector module maintains proper positioning and prevents tilting during pre-installation and assembly operations.
Solution Approach 2:
The patent combines the protective shell function with the stabilization function by integrating the engagement structure into the module housing itself, allowing the housing to simultaneously provide protection and prevent tilting without requiring separate components or large gaps.
4Manufacturing precision
If a protrusion for positioning and fixing the socket connector is fixed on the shell wall, then the socket connector is positioned, but it becomes extremely difficult to remove the socket connector from the circuit board or shell
Solution Approach 1:
The engagement structure employs movable or adjustable elements that allow the socket connector to be firmly positioned during operation but can be easily released when needed. The structure transitions from a static fixed protrusion to a dynamic system that permits controlled movement for both secure positioning and easy removal.
Solution Approach 2:
The fixation mechanism is divided into separable components within the engagement structure, allowing the socket connector to be detached from the shell without damaging either component. The engagement structure enables segmentation of the assembly for maintenance and repair purposes.
Data Source
AI summary
An electronic assembly comprises a circuit board, a connector module, and a fixing assembly. The connector module includes a module housing and connection members at least partially accommodated therein. An engagement structure is formed on the module housing. The fixing assembly is adapted to be engaged with the engagement structure to secure the connector module to the circuit board, such that the connection members are electrically connected to the circuit board.