Compact Robot Vacuum Cyclone Layout for High Suction

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Solution Overview

Problem

Conventional robot cleaners face issues with compact design due to bulky cyclone structures, reduced suction efficiency from small-size motors, and increased weight with medium-size motors, leading to compromised cleaning performance and stability when navigating obstacles.

Innovation Solution

A robot cleaner design featuring a cyclone part generating an ascending rotary air current with a centrifugal dust separation mechanism, integrated with a collection part and a discharge path, allowing for a compact size while maintaining high suction force using a small-size suction motor, and incorporating a locking mechanism for easy maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a cyclone structure is adopted to improve suction efficiency, then cleaning performance is improved, but the device size increases making it non-compact

Engineering Contradiction:
Improvesuction efficiencyVSAvoiddevice size
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The dust receptacle is nested within the cyclone structure, with the cyclone body forming an outer shell and the dust receptacle fitting inside as an inner component. This nesting arrangement allows both the cyclone separation mechanism and dust storage function to occupy the same spatial envelope, achieving compact dimensions while maintaining effective cyclone suction performance

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The invention transitions from conventional vertical stacking of components to a horizontal integration approach where the cyclone structure and dust receptacle are arranged side-by-side and interconnected through fluid passages. This dimensional reorganization reduces the overall height and footprint of the device while preserving the cyclone's suction-generating capability

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

2Force

If a medium-size motor is used to increase suction force, then cleaning performance is improved, but the device weight increases

Engineering Contradiction:
Improvesuction forceVSAvoiddevice weight
Core Design Contradiction:
ForceVSWeight of moving object

Solution Approach 1:

The invention employs a cyclone separator that utilizes rotational fluid dynamics to generate suction force. Air intake is directed tangentially into the cyclone body, creating a rotating air current that generates centrifugal force to separate dust particles. This pneumatic mechanism replaces the need for a high-power motor, achieving effective suction force through fluid mechanics rather than direct mechanical power

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The conventional mechanical suction system driven by a motor is replaced with a cyclone-based pneumatic system. The motor's function of generating suction force is substituted by the cyclone's rotational air current, which creates the necessary pressure differential through its geometric design and rotating flow pattern, eliminating the need for heavy motor components

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Volume of moving object

If a dust bag structure is used, then the device remains compact, but suction efficiency is reduced due to longer dust suction path

Engineering Contradiction:
Improvedevice sizeVSAvoidsuction efficiency
Core Design Contradiction:
Volume of moving objectVSProductivity

Solution Approach 1:

The invention extracts the dust separation function from the main airflow path by implementing a cyclone separator. The cyclone body separates dust particles from the air current through centrifugal force, and the cleaned air is then directed to the dust receptacle. This extraction of the separation function creates a more efficient airflow path compared to conventional dust bags, where all air must travel through the entire dust collection chamber

Inventive Principle:
Principle #2Taking out (Extraction)

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 a slim, compact robot cleaner with high average and initial suction force, ensuring effective cleaning performance and stability, while allowing for easy maintenance and hygienic operation.

Implementation Method 1

a cyclone part generating an ascending rotary air current from the dust-laden air being drawn in through a lower part thereof, separating the dust from the air using a centrifugal force

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS7749294B2Compact robot vacuum cleaner
Publication Date: 2010.07.06 SAMSUNG GWANGJU ELECTRONICS CO LTD
  • US7749294B2 patent drawing
  • US7749294B2 patent drawing
  • US7749294B2 patent drawing

AI summary

A robot cleaner that has a dust collection unit with a cyclone part generating an ascending rotary air current from the dust-laden air being drawn in through a lower part thereof, separating the dust from the air using a centrifugal force, and discharging the dust-separated air to the lower part through a center part, and a collection part surrounding the cyclone part to receive the dust being centrifugally separated.