Blower

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Solution Overview

Problem

Existing blowers face challenges in optimally designing airflow paths and surfaces to minimize resistance and direct airflow effectively, and they are difficult to manufacture and maintain due to complex configurations and accumulation of foreign matter like dust.

Innovation Solution

A blower design featuring a fan with a lower body and upper bodies forming flow paths and slits that utilize the coanda effect to guide airflow efficiently, with detachable panels and connecting members for easy assembly and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the outer wall and inner wall are designed as one piece to form the mouse and coanda surface, then the structural integrity is improved, but the manufacturing complexity and difficulty of cleaning increase

Engineering Contradiction:
Improvestructural integrityVSAvoidmanufacturing difficulty
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The blower is divided into multiple separable components: the housing, the mouse component (with inner wall), and the outer wall assembly. This segmentation allows each part to be manufactured separately using standard molding techniques, reducing manufacturing complexity while maintaining structural integrity through designed connection interfaces.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mouse component is extracted as a separate removable part from the housing. This extraction enables independent manufacturing of the mouse component and allows easy access for cleaning the narrow passages where dust accumulates, without requiring disassembly of the entire housing structure.

Inventive Principle:
Principle #2Taking out (Extraction)

2Stability of the object's composition

If the outer wall and inner wall are designed as one piece, then the structural integrity is improved, but the ease of cleaning and repair deteriorates

Engineering Contradiction:
Improvestructural integrityVSAvoidcleaning accessibility
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The mouse component is segmented from the housing as a separate assembly. This segmentation provides direct access to the narrow passages and coanda surface for cleaning purposes, while the connection structure maintains structural integrity during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mouse component is designed to be extractable from the housing. This extraction capability allows users to remove the mouse component for thorough cleaning of dust accumulation areas, and facilitates repair or replacement without disassembling the entire blower unit.

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If complex airflow paths are designed to minimize resistance, then the airflow efficiency is improved, but the device complexity increases

Engineering Contradiction:
Improveairflow efficiencyVSAvoidstructural complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The airflow path optimization is applied locally at critical sections such as the mouse component and coanda surface areas, rather than redesigning the entire flow path. This local optimization minimizes resistance where it matters most while keeping the overall structure simple and manufacturable.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The mouse component and flow paths incorporate curved surfaces and smooth transitions instead of sharp angles. This curvature design reduces turbulence and flow resistance in key areas, improving airflow efficiency without requiring complex overall restructuring of the blower.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 design achieves efficient airflow distribution, minimizes resistance, and allows for easy cleaning and repair, enabling the blower to provide a wide range of airflow and maintain optimal performance.

Implementation Method 1

the present disclosure relates to a blower capable of forming an airflow using a coanda effect

Methodology Applied
Scientific EffectCoanda effect: Coanda Effect

Data Source

PatentUS12188486B2Blower
Publication Date: 2025.01.07 LG ELECTRONICS INC
  • US12188486B2 patent drawing
  • US12188486B2 patent drawing
  • US12188486B2 patent drawing

AI summary

A blower is provided. The blower according to the present disclosure includes: a fan causing airflow; a lower body forming an inner space at which the fan is disposed, and having a suction hole through which air passes; and a first upper body positioned above the lower body, and the first upper body may include a first wall forming a first flow path communicating with the inner space of the lower body and a first panel surrounding the first wall, and the first panel may include a first slit formed through the first panel and discharging air flowing through the first flow path to an outside of the first panel.