Air Duct Conversion Bin with Toggle-Switched Suction and Blowing

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Solution Overview

Problem

Existing air duct conversion bins integrated with suction and blowing require complex designs and multiple electric machinery setups, leading to bulkiness, high manufacturing and maintenance costs, and slow mode switching due to the need for rotating motor direction changes.

Innovation Solution

A simplified air duct conversion bin design featuring a wind-proof sleeve with toggle switch that allows simultaneous switching between suction and blowing modes without altering the electric machinery's rotation direction, reducing the need for complex circuits and enhancing user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two electric machineries are equipped to form suction and blowing air ducts respectively, then the suction and blowing functions can be realized, but the assembly occupies a large three-dimensional space making the device bulky

Engineering Contradiction:

Improvesuction and blowing functionsVSAvoiddevice size

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent combines two separate electric machineries into a single electric machinery that can operate in both suction and blowing modes. The air duct conversion bin uses one motor to drive a fan that can redirect airflow direction through a switching member, eliminating the need for two separate motors and reducing overall device volume.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single electric machinery is designed to perform multiple functions - both suction and blowing operations. The air duct switching member enables the same motor-fan assembly to serve dual purposes by changing the airflow path configuration, making the device more versatile without requiring additional electric machineries.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If two electric machineries are equipped for suction and blowing, then both modes can operate, but the design of non-interference air passages becomes more complex

Engineering Contradiction:

Improvesuction and blowing modesVSAvoidair passage design

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The air duct system is segmented into separate suction and blowing air passages that are spatially divided. The switching member selectively connects the single fan to either the suction air duct or the blowing air duct, ensuring non-interference between the two airflow paths while maintaining simpler overall design compared to having two complete separate systems.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The air duct switching member acts as an intermediary that directs airflow from the single electric machinery to either the suction or blowing mode. This switching mechanism simplifies the air passage design by using a centralized control point rather than requiring complex independent routing for two separate motors.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If the air duct switching member is arranged at the front end of the shell far away from the electric machinery, then the switching function is achieved, but the structure and control circuit become relatively complex increasing manufacturing and maintenance costs

Engineering Contradiction:

Improvemode switchingVSAvoidstructure and control circuit

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The air duct switching member is nested within or integrated with the air duct conversion bin structure, positioned closer to the electric machinery. This integration simplifies the overall structure by eliminating separate control housings and reduces wiring complexity by shortening the control circuit paths.

Inventive Principle:

Principle #7Nested doll (Nesting)

4Reliability

If the switching between forward and reverse rotation of the motor requires buffer time, then the motor protection is achieved, but the response between dust suction and blowing modes becomes slow

Engineering Contradiction:

Improvemotor protectionVSAvoidmode switching response

Core Design Contradiction:

ReliabilityVSSpeed

Solution Approach 1:

Instead of changing the motor rotation direction to switch between suction and blowing modes, the invention inverts the approach by keeping the motor rotation constant and using the air duct switching member to redirect airflow. This eliminates the need for rotation reversal buffer time and achieves instant mode switching while maintaining motor protection through the mechanical switching design.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS20240148202A1Air duct conversion bin integrated with suction and blowing

Publication Date: 2024.05.09 SHENZHEN BEIBANQIU NETWORK TECH CO LTD

AI summary

The present disclosure provides air duct conversion bin integrated with suction and blowing, comprises an electric machinery and an air duct switching member for switching the suction mode and the blowing mode of the electric machinery; wherein the air duct switching member comprises a wind-proof sleeve which is covered on the outside of the electric machinery; the wind-proof sleeve are respectively provided with an air suction end face and an air blowing end face that can be switched on and off; the air duct switching member also includes a toggle switch. By setting the air suction end face and the wind-proof sleeve of the air blowing end face that can be switched on and off, it is not necessary to change the rotation direction of the electric machinery. At the same time, it is not necessary to set the corresponding complex circuit to reduce the production and maintenance costs.