PCB Anchoring Member for Dual-Sided Daughter Board Fastening

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Solution Overview

Problem

Existing PCB configurations require multiple structural devices to secure daughter boards on both sides of a mother board, increasing costs, complexity, and real estate usage, as well as necessitating multiple holes and orientations on the daughter boards.

Innovation Solution

A single anchoring member with a friction fit surface and coupling members allows for secure fastening of daughter boards on both sides of a mother board in parallel, reducing the need for multiple structural elements and simplifying the design and wiring by using a single aperture or fastening device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple individual structural devices are used to secure daughter boards on both sides of a mother board, then the daughter boards can be securely fastened, but the cost increases and the real estate on the mother board is increased

Engineering Contradiction:
Improvesecure fastening of daughter boardsVSAvoidnumber of structural elements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple separate structural devices into a single integrated anchoring member that can secure daughter boards on both sides of a mother board. This single device includes multiple coupling members extending from a central body, eliminating the need for multiple individual structural elements while maintaining secure fastening capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The anchoring member is designed as a universal component that can serve multiple functions: it can secure daughter boards on both the front and back sides of the mother board, accommodate different orientations, and provide structural support across the entire assembly. This multi-functionality reduces the overall number of components needed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple individual structural devices are used to secure daughter boards on both sides of a mother board, then the daughter boards can be securely fastened, but the real estate on the mother board is increased

Engineering Contradiction:
Improvesecure fastening of daughter boardsVSAvoidreal estate on mother board
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent combines multiple separate structural devices into a single integrated anchoring member that can secure daughter boards on both sides of a mother board. This single device includes multiple coupling members extending from a central body, eliminating the need for multiple individual structural elements while maintaining secure fastening capability.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If several holes are present on the daughter board to accommodate different orientations of structural elements, then the daughter boards can be secured in multiple orientations, but the available area on the daughter board is decreased and wiring complexity is increased

Engineering Contradiction:
Improveaccommodation of different orientationsVSAvoidavailable area on daughter board
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The anchoring member features an asymmetric design with coupling members extending in different directions from a central body. This asymmetric structure allows the same component to accommodate various orientations and configurations of daughter boards without requiring multiple holes or openings in the daughter board itself, thereby preserving available area and reducing wiring complexity.

Inventive Principle:
Principle #4Asymmetry

4Adaptability or versatility

If several holes are present on the daughter board to accommodate different orientations of structural elements, then the daughter boards can be secured in multiple orientations, but the wiring complexity is increased

Engineering Contradiction:
Improveaccommodation of different orientationsVSAvoidwiring circuit complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The anchoring member features an asymmetric design with coupling members extending in different directions from a central body. This asymmetric structure allows the same component to accommodate various orientations and configurations of daughter boards without requiring multiple holes or openings in the daughter board itself, thereby preserving available area and reducing wiring complexity.

Inventive Principle:
Principle #4Asymmetry

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 solution decreases assembly and material costs, simplifies the design of mother and daughter boards, and enhances port density and space efficiency in electronic devices by allowing dual-sided securement with a single structural element.

Implementation Method 1

The anchoring member comprises a friction fit surface for securing the anchoring member to the mother board

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP2044818B1Anchoring member to facilitate fastening daughter boards to a mother board
Publication Date: 2013.03.27 RUGGEDCOM INC
  • EP2044818B1 patent drawingFigure 1~2
  • EP2044818B1 patent drawingFigure 3~4
  • EP2044818B1 patent drawingFigure 5~6

AI summary

An anchoring member and related method are disclosed for substantially parallel assembly of two additional daughter printed circuit boards (PCB) and heat sink on each side of main of mother PCB, and to retain a predetermined mating distance thereto to retain a predetermined mating distance thereto. The anchoring member comprises an elongated body extending in a longitudinal direction and having a first coupling member on one end for coupling the first daughter board in a substantially perpendicular orientation to the longitudinal direction on a first side of the mother board. The elongated body also comprises a second coupling member at the opposite end from the elongated body from the first coupling member for coupling the second daughter board in a substantially perpendicular orientation to the longitudinal direction on a second side of the mother board. The elongated body also has a positioning flange for positioning the elongated body in an aperture of the mother board at an inserted position and a friction fit surface for interacting with the aperture of the mother board to secure the elongated body in the inserted position.