Modular Power Supply PCB Protrusion Groove Interface
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Solution Overview
Problem
In power supply devices with multiple modules, it is difficult for users to identify and replace only the faulty module, leading to the need for replacing the entire device when an error occurs, which is inefficient and costly.
Innovation Solution
A power supply device design featuring modular printed circuit boards with protrusion and groove configurations, along with LED indicators and conductive connections, allows for easy identification and replacement of faulty modules, enabling separate module replacement and reducing downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power supply device is implemented as integrated package including various modules, then power supply stability is improved, but ease of repair deteriorates
Solution Approach 1:
The power supply device is divided into multiple independent modules (first power module, second power module, third power module) that can be separately replaced. Each module is connected through standardized interfaces (protrusion parts and grooves) allowing individual module replacement without replacing the entire power supply device, thus improving ease of repair while maintaining system reliability.
2Loss of energy
If multiple modules are integrated in one package, then power conversion efficiency is improved, but device complexity increases
Solution Approach 1:
The power supply device is segmented into multiple independent modules (first power module with first printed circuit board, second power module with second printed circuit board, third power module with third printed circuit board) that can be separately replaced. Each module is connected through standardized interfaces (protrusion parts and grooves) allowing individual module replacement without replacing the entire power supply device, thus improving ease of repair while maintaining system reliability.
3Ease of repair
If modular design with separate replaceable modules is implemented, then ease of repair is improved, but device complexity increases
Solution Approach 1:
The printed circuit boards are designed with asymmetric protrusion and groove structures that provide both mechanical connection and electrical connection functions. The protrusion part on one PCB fits into the groove part on another PCB, creating an asymmetric interface that simplifies module replacement while maintaining reliable electrical connections, thus improving ease of repair without significantly increasing device complexity.
Data Source
Figure 1~2a
Figure 2b~2d
Figure 3
AI summary
A power supply device includes a first power module including a first printed circuit board in which a first protrusion part is formed along a first side surface of the first printed circuit board facing a first direction, a second power module including a second printed circuit board in which a first groove is formed along a second side surface of the printed circuit board facing the first side surface of the first printed circuit board in a second direction, and a third power module including a third printed circuit board electrically connecting the first printed circuit board and the second printed circuit board. The first protrusion part is inserted into the first groove to physically connect the first printed circuit board to the second printed circuit board.