Blowing-Suction Device Single Air Pipe Fan Rotation

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Solution Overview

Problem

Traditional blowing-suction devices require multiple tools and complex operations due to separate blowing and suction functions, with inconvenient mode switching and a bulky structure, and existing designs with two pipes are inefficient and costly.

Innovation Solution

A blowing-suction device with a single air pipe that functions in both modes by controlling airflow direction, using a fan that rotates to change airflow direction between blowing and suction modes, and a compact structure with a crushing mechanism for object handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single air pipe is used for both blowing and suction modes, then the device complexity and storage space are reduced, but the airflow direction control mechanism becomes more critical

Engineering Contradiction:
Improvestructure complexityVSAvoidmode switching convenience
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The fan is designed to rotate in different directions to dynamically change the airflow path. By reversing the fan rotation direction, the same air pipe can serve both blowing and suction functions, eliminating the need for separate pipes and reducing structural complexity while maintaining operational convenience

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The single air pipe is designed to handle both blowing and suction operations universally. The pipe structure incorporates features that allow it to function in both modes by simply changing the fan rotation direction, making one component perform multiple functions and reducing the overall number of parts needed

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

2Ease of operation

If the fan rotates to change airflow direction between modes, then the ease of operation is improved, but the reliability of airflow generation may be affected

Engineering Contradiction:
Improvemode switching convenienceVSAvoidairflow generation stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system uses dynamic fan rotation control to switch between modes. The fan can reliably rotate in both directions, and the control mechanism ensures proper rotation direction for the desired mode, providing both ease of operation and reliable airflow generation without compromising performance

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control mechanism incorporates feedback to monitor fan rotation direction and adjust accordingly. This ensures that the fan rotates in the correct direction for the selected mode, maintaining reliable airflow generation while allowing easy mode switching through directional control

Inventive Principle:
Principle #23Feedback

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 device simplifies operations by eliminating the need for mode-specific tools and structures, enhancing user convenience and reducing complexity, while maintaining efficient airflow and compact design.

Implementation Method 1

an airflow generation device operably generating airflow

Methodology Applied
Scientific EffectFan: Fan

Data Source

PatentUS10398095B2Blowing-suction device
Publication Date: 2019.09.03 POSITEC POWER TOOLS (SUZHOU) CO LTD
  • US10398095B2 patent drawing
  • US10398095B2 patent drawing
  • US10398095B2 patent drawing

AI summary

Disclosed is a blowing-suction device, comprising a housing; an air pipe extending along a longitudinal direction and connected to the housing; a motor located in the housing and providing rotational motion; and a fan rotationally generating an airflow; wherein when the fan operably rotates along a first direction, the blowing-suction device is in a blowing mode; and when the fan operably rotates along a second direction, the blowing-suction device is in a suction mode.