Composite PCB Penetration Coupling to Reduce Volume and Cost
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Solution Overview
Problem
The existing printed circuit boards (PCBs) used in laundry treatment apparatuses face challenges in cost efficiency and space utilization, as all double-sided PCBs increase costs and all single-sided PCBs increase size, while current coupling methods complicate installation and increase volume.
Innovation Solution
A composite printed circuit board configuration where a double-sided PCB penetrates and couples directly with a single-sided PCB without additional coupling members, using exposed leads and mounting portions for electrical connection, allowing for reduced volume and simplified manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If all double-sided PCBs are used, then calculation-processing capabilities are enhanced, but production costs increase
Solution Approach 1:
The control board is divided into two separate PCBs: a first PCB for high-power components requiring double-sided construction, and a second PCB for low-power components that can use single-sided construction. This segmentation allows each PCB to be optimized for its specific requirements, reducing overall manufacturing costs while maintaining necessary processing capabilities.
Solution Approach 2:
Different PCB types are applied to different functional areas based on their specific requirements. The first PCB uses double-sided construction where high processing power is needed, while the second PCB uses single-sided construction where lower processing power suffices. This local optimization reduces costs without sacrificing necessary performance.
2Ease of manufacture
If all single-sided PCBs are used, then production costs are reduced, but device volume increases
Solution Approach 1:
The two PCBs are arranged in a vertical stacked configuration rather than side-by-side horizontal arrangement. The first PCB is positioned above the second PCB, utilizing the vertical dimension to reduce the horizontal footprint and overall device volume while maintaining cost efficiency through selective single-sided construction.
3Reliability
If additional coupling members are used to connect PCBs, then connection reliability is improved, but device complexity and volume increase
Solution Approach 1:
The coupling function is merged directly into the PCB structures themselves through complementary mounting features. The first PCB includes mounting portions that directly engage with corresponding mounting holes in the second PCB, eliminating the need for separate coupling members. This integration maintains connection reliability while simplifying the overall device structure and reducing installation complexity.
4Stability of the object's composition
If additional coupling members are used to connect PCBs, then structural stability is improved, but device volume increases
Solution Approach 1:
The mounting portions and mounting holes are designed to nest together in a compact vertical arrangement. The first PCB's mounting portions fit directly into the second PCB's mounting holes, creating a nested coupling structure that provides structural stability without requiring additional space for separate coupling components, thereby minimizing device volume.
Data Source
AI summary
Disclosed is a composite printed circuit board including a first printed circuit board (PCB) having a first circuit pattern mounted thereon, and a second PCB having a second circuit pattern mounted thereon, and the first PCB penetrates and is coupled to the second PCB so that the first circuit pattern is electrically connected to the second circuit pattern.