Magnetic Fan Set Assembly for Tolerance-Resilient Joining

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Solution Overview

Problem

Conventional fan joining methods rely on external fixing members that can be lost or cause misalignment due to dimensional tolerances, leading to complex assembly and disassembly processes.

Innovation Solution

A magnetically attracted fan set where each fan includes fixing members that generate magnetic attraction for joining, allowing for easy assembly and electrical connection without external components, using transmission electrodes for power transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional fixing members are used for joining fans, then the fans can be fixed together, but the fixing members can be lost during storage and cause misalignment due to dimensional tolerances

Engineering Contradiction:
Improvejoining stabilityVSAvoidassembly convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent combines the fixing member and positioning function into a single integrated magnetic attachment mechanism. The magnetic fixing member simultaneously provides both the joining force and the positioning alignment, eliminating the need for separate components and reducing assembly steps while maintaining reliable connection between fans.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If additional fixing members are used for joining fans, then the fans can be securely fixed, but the assembly process becomes complicated and requires multiple components

Engineering Contradiction:
Improvejoining stabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention merges multiple functions (fixing, positioning, and alignment) into a single magnetic fixing member component. This integration reduces the total number of parts required for fan assembly while ensuring secure and accurate joining through the magnetic attraction mechanism that provides both attachment force and positional alignment.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If mechanical connection structures are directly formed on fans, then no external fixing members are needed, but misalignment occurs due to excessive dimensional tolerances

Engineering Contradiction:
Improveassembly convenienceVSAvoidalignment accuracy
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent replaces the conventional mechanical connection system with a magnetic field-based fixing system. The magnetic fixing member uses magnetic attraction force instead of mechanical interlocking, which eliminates the sensitivity to dimensional tolerances and alignment issues while maintaining secure attachment. The magnetic field provides a tolerance-compensating mechanism that ensures reliable joining despite manufacturing variations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Simplifies assembly by eliminating the need for external components and ensures stable electrical connections, reducing assembly complexity and preventing misalignment.

Implementation Method 1

The N+1 fans are joined with one another through magnetic attraction generated by the plurality of fixing members

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

when the fixing member and the plurality of fixing members of one of the N+1 fans generate a magnetic attraction effect, the control source electrode is connected to one of the plurality of transmission electrodes

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS12416310B2Magnetically attracted fan set
Publication Date: 2025.09.16 SEA SONIC ELECTRONICS CO LTD
  • US12416310B2 patent drawing
  • US12416310B2 patent drawing
  • US12416310B2 patent drawing

AI summary

A magnetically attracted fan set comprises N+1 fans, the N≥1, and each of the N+1 fans has a fan frame and an airflow generating component disposed on the fan frame. Any two adjacent fans of the N+1 fans respectively have a joint surface, each of the joint surfaces has at least one fixing member capable of forming magnetic attraction, when the joint surface is close to the other joint surface at a distance sufficient for the two fixing members on the two joint surfaces to form magnetic attraction, two of the N+1 fans are joined together. Accordingly, the invention is capable of directly and quickly joining the N+1 fans without requiring complicated assembly gestures or other external components.