Handheld Vacuum Cyclone Layout for Strong Suction and Less Clogging

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Solution Overview

Problem

Handheld vacuum cleaners face challenges in efficiently separating and collecting dust and debris due to suboptimal design of cyclonic chambers and air flow paths, leading to reduced suction power and increased clogging risks.

Innovation Solution

The design incorporates a cyclonic chamber with a specific acute and obtuse angle configuration between the dirty air inlet, motor assembly, and handle axis, along with a removable cyclonic separator assembly and a battery receptacle that intersects with the separator axis, enhancing airflow and debris separation while allowing for easy maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the cyclonic chamber and air flow path are designed with conventional configurations, then the device structure is simple, but the suction power and debris collection efficiency are reduced

Engineering Contradiction:
Improvedebris collection efficiencyVSAvoidcyclonic chamber design complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cyclonic separator assembly is designed as a removable, segmented component that can be detached from the main body. This allows the cyclonic chamber to be optimized for high debris collection efficiency through specific geometric configurations while maintaining ease of manufacture and maintenance. The segmentation enables independent optimization of the cyclonic chamber geometry without increasing overall device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The air inlet is positioned at an angled orientation relative to the cyclonic chamber axis, creating a three-dimensional air flow path that enters tangentially. This angular configuration optimizes the cyclonic vortex formation and debris separation efficiency by utilizing spatial dimensionality, while the angled inlet design itself becomes a standardized feature that does not significantly increase manufacturing complexity.

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

2Productivity

If the cyclonic chamber design is optimized for better separation, then suction power improves, but the risk of clogging increases

Engineering Contradiction:
Improvesuction powerVSAvoidclogging resistance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The cyclonic chamber is designed with dynamically optimized flow paths that maintain high-velocity vortex flow for effective debris separation and high suction power. The tangential inlet and chamber geometry create a dynamic balance between strong centrifugal forces for separation and sufficient axial flow velocity to prevent particle accumulation and clogging. The removable design allows periodic maintenance to further ensure reliability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The air inlet angle and cyclonic chamber dimensions are precisely optimized to control flow parameters. The inlet is angled to create optimal tangential flow that maximizes vortex strength for high suction power while maintaining sufficient axial flow component to prevent clogging. These parameter optimizations are built into the standardized removable assembly design.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If the cyclonic separator assembly is made removable for easy maintenance, then ease of operation improves, but device complexity increases

Engineering Contradiction:
Improvemaintenance accessibilityVSAvoidassembly structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The cyclonic separator assembly is segmented as a distinct, self-contained unit that includes the cyclonic chamber, air inlet, and associated components. This segmentation enables the assembly to be removed as a single unit for easy maintenance and cleaning. The standardized interface between the removable assembly and main body minimizes the complexity increase, making the benefit of easy maintenance achievable with minimal structural complexity addition.

Inventive Principle:
Principle #1Segmentation

4Productivity

If the air inlet is positioned at an acute angle to the cyclonic chamber, then debris separation efficiency improves, but manufacturing precision requirements increase

Engineering Contradiction:
Improveseparation efficiencyVSAvoidinlet angle precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The air inlet and cyclonic chamber are integrated as a standardized removable assembly with pre-configured angular geometry. This segmentation allows the precise angular relationship to be established during assembly of the standardized components rather than requiring high-precision machining of the entire unit, thereby reducing overall manufacturing precision requirements while maintaining separation efficiency.

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

This configuration improves suction power and debris collection efficiency, reduces clogging, and simplifies maintenance by ensuring effective airflow and separation of dust and debris, while providing a user-friendly interface for battery insertion and cyclonic separator removal.

Implementation Method 1

a cyclonic chamber in fluid communication with the dirty air inlet and the motor assembly. The cyclonic chamber defines a separator axis.

Methodology Applied
Scientific EffectCyclone separation: Cyclone Separation

Implementation Method 2

cyclonic handheld vacuum cleaners... cyclonic chamber... separating and collecting dust and debris

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS11419465B2Handheld vacuum cleaner
Publication Date: 2022.08.23 TECHTRONIC FLOOR CARE TECH LTD
  • US11419465B2 patent drawing
  • US11419465B2 patent drawing
  • US11419465B2 patent drawing

AI summary

A handheld vacuum cleaner includes a main body with a handle extending along a handle axis. The handheld vacuum cleaner also includes a motor assembly positioned within the main body. The handle axis intersects the motor assembly. The handheld vacuum cleaner also includes a dirty air inlet positioned at a front of the handheld vacuum cleaner and extending along an inlet axis. In addition, the handheld vacuum cleaner includes a cyclonic chamber in fluid communication with the dirty air inlet and the motor assembly. The cyclonic chamber defines a separator axis. The inlet axis and the separator axis intersect to form an acute angle extending between the dirty air inlet and the cyclonic chamber. The inlet axis and the handle axis intersect to form an obtuse angle extending between the dirty air inlet and the handle.