Substrate Protection Structure for Connector Assembly
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Solution Overview
Problem
In existing substrate built-in connectors, directly applying a pressing force to the substrate during inner housing assembly can cause stress, potentially damaging the solder portion and mounting components.
Innovation Solution
A substrate protection structure is implemented, featuring an inner housing with a first projecting portion that guides the substrate and a second projecting portion that contacts the outer housing, allowing the inner housing to be integrated with the outer housing without stressing the substrate, using a cover to facilitate the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pressing force is directly applied to the substrate during inner housing assembly, then the inner housing can be assembled to the outer housing, but the substrate and its components are stressed and may be damaged
Solution Approach 1:
The first projecting portion of the inner housing serves as an intermediary element that transmits the pressing force from the cover to the inner housing, preventing direct application of force to the substrate. This mediator structure allows assembly while protecting the substrate from stress
Solution Approach 2:
The pressing force application is segmented into two distinct stages: first the cover presses the first projecting portion to move the inner housing, then the second projecting portion contacts the outer housing for integration. This segmentation prevents simultaneous stress on the substrate while enabling complete assembly
2Manufacturing precision
If a dedicated jig is used to apply pressing force to the substrate, then precise control of assembly force is achieved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The inner housing structure itself provides the force control mechanism through its projecting portions. The first projecting portion and second projecting portion automatically regulate the pressing force distribution during assembly, eliminating the need for external jig equipment while maintaining precise force control
Solution Approach 2:
The projecting portions act as built-in intermediaries that mediate between the cover and the assembly components, providing automatic force distribution and control without requiring complex external equipment
3Ease of operation
If the inner housing is pushed into the outer housing without protective structure, then the assembly process is simple, but the substrate is directly stressed and components may be damaged
Solution Approach 1:
The first projecting portion serves as a protective intermediary that the cover contacts instead of the substrate. This allows simple push-in assembly while the intermediary structure prevents harmful direct contact between the pressing mechanism and the substrate
Solution Approach 2:
The projecting portions are pre-configured to provide cushioning protection before the pressing force is applied. The first projecting portion absorbs and distributes the initial pressing force, preventing direct transmission to the substrate components
Data Source
AI summary
A substrate protection structure during inner housing assembling includes an outer housing, a substrate, an inner housing that is disposed with the substrate and is disposed in the outer housing by moving in a predetermined direction relative to the outer housing together with the substrate, and a first projecting portion that is disposed to the inner housing, and projects further on a rear side than the substrate in the predetermined direction when the inner housing is disposed in the outer housing.