Rotatable Fan Head Adjusting Airflow Direction

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Solution Overview

Problem

Conventional fans lack the ability to efficiently direct airflow and adjust wind speed and direction, especially in compact spaces, limiting their effectiveness in heat dissipation and user convenience.

Innovation Solution

A fan design featuring a rotatable fan head and seat with a hinged connection, allowing for adjustable angles and wind direction control, along with a communication module for remote operation, enabling multiple working modes and reduced occupied space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the fan uses a fixed structure, then the manufacturing is simple, but the wind direction adjustment capability is limited

Engineering Contradiction:
Improvewind direction adjustment capabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by implementing a rotatable fan head mechanism that allows the fan to adjust its wind direction dynamically. The fan head can rotate to different angles, enabling the airflow direction to be changed according to user needs, thus improving adaptability while managing structural complexity through a focused rotational mechanism.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the fan occupies more space, then the airflow management is better, but the space utilization is reduced

Engineering Contradiction:
Improveairflow management capabilityVSAvoidoccupied space
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The patent applies the dimensionality change principle by utilizing the vertical space through adjustable fan head angles. Instead of expanding the fan's horizontal footprint, the design allows the fan head to tilt and rotate, directing airflow in different directions within the same occupied space, thereby improving airflow management capability without increasing the volume of space occupied.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of operation

If the fan requires manual operation, then the device complexity is low, but the user convenience is reduced

Engineering Contradiction:
Improveuser convenienceVSAvoidcontrol system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies the mechanics substitution principle by replacing manual mechanical operation with wireless communication control. The fan incorporates a communication module that receives wireless commands (such as infrared or radio frequency signals) to control fan operations, substituting the need for direct mechanical interaction with a more convenient remote control interface, thus improving user convenience while accepting increased control system complexity.

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

The fan effectively reduces occupied space, allows for precise wind direction adjustment, and enhances user convenience through remote control, improving airflow management and heat dissipation capabilities.

Implementation Method 1

a first rotating shaft, wherein the first rotating shaft is provided at edges of the first surface and the second surface to rotatably connect the fan seat and the fan head

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3462037B1fan
Publication Date: 2021.09.01 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3462037B1 patent drawingFigure 1A~2
  • EP3462037B1 patent drawingFigure 3~4
  • EP3462037B1 patent drawingFigure 5~6

AI summary

A fan includes a fan seat and a fan head, wherein a first surface of the fan head opposed a second surface of the fan seat. The fan further includes a first rotating shaft at edges of the first surface and the second surface configured to rotatably couple the fan seat and the fan head, such that the first surface of the fan head and the second surface of the fan seat form a target angle based on the first rotating shaft.