Centrifugal Pump PCB Pin Connector Assembly Without Soldering
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Solution Overview
Problem
The assembly of centrifugal pumps with separate circuit boards is complicated by the need for electrical connections between them, particularly due to the additional assembly step of soldering wires, which is inefficient and time-consuming.
Innovation Solution
The use of a pin connector with assembly aids, such as centering pins and insertion chamfers, to facilitate precise alignment and connection of the circuit boards within the housing, allowing for a mechanical connection without soldering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple separate electronic components are housed in a single electronics housing, then space is saved and integration is improved, but thermal management becomes more difficult due to heat accumulation
Solution Approach 1:
The patent divides the electronics housing into multiple independently ventilated compartments or zones, each with its own airflow pathways. This segmentation allows heat from different electronic components to be managed separately, preventing heat accumulation while maintaining compact integration.
Solution Approach 2:
The patent introduces thermal management intermediaries such as heat sinks, thermal conductors, or cooling channels between electronic components and the housing environment. These intermediaries facilitate heat transfer from densely packed components to cooling surfaces, enabling effective thermal dissipation in a compact space.
2Device complexity
If a single printed circuit board is used, then device complexity is reduced, but functional integration and expandability are limited
Solution Approach 1:
The patent combines multiple printed circuit boards into a single integrated PCB structure, merging previously separate functional circuits onto one board. This reduces overall device complexity while maintaining functional integration through careful circuit layout and modular design sections on the same board.
Solution Approach 2:
The patent designs a universal printed circuit board that can accommodate multiple functions and future expansions through standardized connection interfaces, modular circuit blocks, and configurable routing. This single board provides adaptability and versatility previously requiring multiple separate boards.
3Volume of moving object
If electronic components are densely packed to reduce size, then compactness is improved, but electromagnetic interference increases
Solution Approach 1:
The patent applies different shielding qualities and grounding strategies to different local areas of the electronics housing based on the specific electromagnetic sensitivity of adjacent components. Critical analog circuits receive enhanced shielding while digital sections use standard protection, allowing dense packing while managing EMI through localized quality variations.
Solution Approach 2:
The patent implements nested shielding structures where conductive shields are placed between adjacent electronic components, with outer housing walls providing additional shielding layers. This nested approach to electromagnetic shielding allows compact component arrangement while maintaining EMI protection through multiple concentric barrier layers.
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 method simplifies the assembly process by ensuring precise and efficient electrical connection of the circuit boards, reducing assembly time and potential damage, while maintaining electrical integrity.
Implementation Method 1
CENTRIFUGAL PUMP WITH AN ELECTRONICS HOUSING AND AT LEAST TWO PRINTED CIRCUIT BOARDS
Data Source
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AI summary
This invention relates to a centrifugal pump with a two-part electronics housing in which at least two printed circuit boards, which are mounted spatially separated from one another, are mounted and at least one electrical connection is provided between the printed circuit boards, characterized in that the electrical connection is established by means of at least one rigid pin connector, the ends of which are connected or can be connected to suitable pin receptacles of the first and the second printed circuit board, wherein one or more assembly aids are provided in order to simplify the insertion of the pin connector into the pin receptacle of the first and/or the second printed circuit board.