Ground Point Fixing Device for Power Supply Modules
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Solution Overview
Problem
Current power supply modules face challenges in efficiently utilizing internal space due to the space-consuming and damage-prone wire connections for grounding, which also fail to meet safety regulations with single soldering as a fixation method.
Innovation Solution
A ground point fixing device with an engaging part and a fastening part, featuring an engaging body, joining portion, and engagement portion, which securely fixes the circuit board through a grounding hole, providing a double stabilizing effect that complies with safety regulations and optimizes space utilization by positioning the device below conductor pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wires are used to electrically connect ground points on a circuit board, then electrical connection is achieved, but space utilization is reduced and the wires are susceptible to damages
Solution Approach 1:
The patent extracts the grounding function from traditional wire-based connections and integrates it directly into the circuit board structure through grounding holes and engaging parts. This eliminates the need for separate wires, reducing space occupation while maintaining electrical connection reliability.
Solution Approach 2:
The grounding structure is merged with the circuit board by incorporating grounding holes directly into the board design and using engaging parts that combine mechanical engagement with electrical connection. This integration eliminates the need for separate wire components, optimizing space utilization.
2Reliability
If soldering is used to electrically connect ground points on a circuit board, then electrical connection is achieved, but safety regulations require a double fixation structure
Solution Approach 1:
The patent merges mechanical engagement and electrical connection into a single integrated structure. The engaging part with engagement portions provides mechanical fixation while the joining portion establishes electrical connection through the grounding hole, eliminating the need for separate soldering and mechanical fastening steps.
Solution Approach 2:
The engaging part serves multiple functions simultaneously: it provides mechanical engagement through engagement portions, establishes electrical connection through the joining portion passing through the grounding hole, and ensures proper positioning. This multi-functionality satisfies safety regulations without increasing structural complexity.
3Reliability
If internal space is increased to accommodate grounding structures, then safety regulations are met, but power density is reduced
Solution Approach 1:
The patent utilizes the vertical dimension by positioning the engaging part below the conductor pins and using the thickness direction of the circuit board for the grounding hole. This allows the grounding structure to occupy unused vertical space rather than horizontal space, maintaining power density while ensuring grounding stability.
Solution Approach 2:
The engaging part is nested within the space below the conductor pins, utilizing the vertical space that would otherwise be unused. The engagement portions fit within the grounding hole structure, creating a compact nested arrangement that maximizes space efficiency.
Data Source
AI summary
A ground point fixing device for a power supply module includes an engaging part and a fastening part. The engaging part includes an engaging body, a joining portion and an engaging portion. The engagement body has a body outer diameter and a body surface larger than a grounding hole on a power supply module circuit board. The joining portion is disposed on the body surface and has a joining portion outer diameter smaller than the grounding hole. The engagement portion is disposed on the body surface and around an outer circumference of the joining portion. The joining portion is passed through the grounding hole to be connected to the fastening part, so that the engagement portion of the engaging part is engaged in the grounding hole, and the fastening part and the engagement body of the engaging part are respectively fixed on an upper surface and a lower surface of the circuit board.