Bladeless Fan Air-Supply Frame for Uniform Low-Noise Airflow

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Solution Overview

Problem

Existing bladeless fans suffer from low air velocity, high noise, and uneven air supply due to long air passage distances and circular air delivery paths, leading to air accumulation.

Innovation Solution

The air-supply assembly incorporates an air-supply frame pillar and frame with a communication passage, air guide components, and multiple outlets, forming an annular structure to enhance air velocity, reduce noise, and ensure uniform air distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the air supply section is designed as a circular ring frame with air conveyed along the entire ring structure, then the air supply coverage is comprehensive, but the air passage transmission distance becomes long, causing high noise, low air velocity, and air accumulation

Engineering Contradiction:
Improveair supply coverageVSAvoidair velocity
Core Design Contradiction:
Ease of operationVSSpeed

Solution Approach 1:

The patent divides the air supply system into multiple independent air passage channels instead of using a single circular ring structure. Each air passage has a dedicated air outlet, segmenting the air flow path to reduce transmission distance and prevent air accumulation while maintaining comprehensive coverage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from a two-dimensional circular ring air passage to a three-dimensional structure with multiple air passages arranged in different spatial dimensions. This allows air to be supplied through multiple outlets simultaneously, reducing the effective transmission distance in each direction while maintaining omnidirectional coverage.

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

2Ease of operation

If the air supply section is designed as a circular ring frame with air conveyed along the entire ring structure, then the air supply coverage is comprehensive, but the noise level increases due to long air passage transmission distance

Engineering Contradiction:
Improveair supply coverageVSAvoidnoise
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent divides the air supply system into multiple independent air passage channels instead of using a single circular ring structure. Each air passage has a dedicated air outlet, segmenting the air flow path to reduce transmission distance and prevent air accumulation while maintaining comprehensive coverage.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If the air supply section is designed as a circular ring frame with air conveyed along the entire ring structure, then the structure is simple, but air accumulation occurs in the air passage due to long transmission distance

Engineering Contradiction:
Improvestructure simplicityVSAvoidair flow uniformity
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent divides the air supply system into multiple independent air passage channels instead of using a single circular ring structure. Each air passage has a dedicated air outlet, segmenting the air flow path to reduce transmission distance and prevent air accumulation while maintaining comprehensive coverage.

Inventive Principle:
Principle #1Segmentation

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 solution increases air velocity, reduces noise, and prevents air accumulation, resulting in improved air supply efficiency and a more pleasant user experience.

Implementation Method 1

an air guide component, the air guide component may be arranged at the connection portion of the air-supply frame pillar passage and the air-supply passage

Methodology Applied
Scientific EffectFluid flow guidance:

Data Source

PatentUS20260078771A1Air-supply assembly and bladeless fan
Publication Date: 2026.03.19 NINGBO SINGFUN ELECTRIC APPLIANCE
  • US20260078771A1 patent drawing
  • US20260078771A1 patent drawing
  • US20260078771A1 patent drawing

AI summary

Disclosed are an air-supply assembly and a bladeless fan. The air-supply assembly includes an air-supply frame pillar and an air-supply frame. The air-supply frame pillar is provided with an air-supply frame pillar passage therein, and the air-supply frame is provided with an air-supply passage therein. The air-supply frame pillar is connected to the air-supply frame so that the air-supply frame pillar passage is in communication with the air-supply passage. An air outlet is provided on the air-supply frame.