Vacuum Cleaner Wheel Display for Visible Drive State Feedback

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Solution Overview

Problem

Existing vacuum cleaners have low visibility of operation states, making it difficult for users to perceive errors or wheel driving states, and battery detachment is inconvenient, leading to potential damage or inefficient cleaning.

Innovation Solution

A vacuum cleaner with a display unit on each wheel to show operation state information, including rotation direction, and a detachable battery with a rear attachment that adjusts the center of gravity for improved stability and ease of use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the display unit is provided in the main body, then the operation state can be displayed, but the visibility is low and requires user's excessive concentration

Engineering Contradiction:
Improveoperation state informationVSAvoiduser concentration effort
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The display unit is moved from the main body to the wheels, changing the spatial dimension of information display. This allows the display to be positioned at a more visible location that naturally catches the user's attention during operation, eliminating the need for excessive concentration to perceive operation states

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

2Reliability

If the battery assembly is provided in the cleaner body, then the vacuum cleaner can operate, but it is inconvenient to detach the battery assembly

Engineering Contradiction:
Improvepower supply stabilityVSAvoidbattery detachment convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The battery assembly is segmented from the main body through a detachable connection structure. This allows the battery to be easily removed and reattached while maintaining secure connection during operation, resolving the contradiction between operational reliability and ease of battery handling

Inventive Principle:
Principle #1Segmentation

3Extent of automation

If the wheels are automatically driven by a driving device, then the vacuum cleaner moves automatically, but the user may not perceive the driving state of the wheels

Engineering Contradiction:
Improveautomatic wheel drivingVSAvoidwheel driving state information
Core Design Contradiction:
Extent of automationVSLoss of information

Solution Approach 1:

The display unit on the wheels provides real-time feedback about the wheel's driving state, rotation direction, and operation status. This visual feedback mechanism allows users to automatically perceive the driving state without requiring additional attention or concentration

Inventive Principle:
Principle #23Feedback

4Loss of information

If the display unit is provided on each wheel, then the operation state information and rotation direction can be displayed, but the device complexity increases

Engineering Contradiction:
Improveoperation state visibilityVSAvoiddisplay unit configuration
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The display unit is designed as a multi-functional component that simultaneously displays operation state information, rotation direction, and other wheel status data. This universal display approach consolidates multiple information functions into a single component, reducing overall device complexity while maintaining comprehensive information visibility

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

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

Enhances user awareness of operation states and wheel direction, prevents damage, and simplifies battery handling, improving cleaning efficiency and stability.

Implementation Method 1

The display unit may include a light emitting unit having a circular or ring shape around a rotation center of the wheels

Methodology Applied
Scientific EffectLight emitting: Light Emitting Diode

Data Source

PatentEP3210511B1Vacuum cleaner and method of displaying state thereof
Publication Date: 2018.07.25 LG ELECTRONICS INC
  • EP3210511B1 patent drawingFigure 1
  • EP3210511B1 patent drawingFigure 2
  • EP3210511B1 patent drawingFigure 3

AI summary

A vacuum cleaner includes a main body 10, a suction part 21, wheels 120 rotatably provided in the main body 10 to move the main body 10, a driving unit 50 for driving the wheels 120, a display unit 180 provided on each of the wheels 120 to display operation state information of the vacuum cleaner, and a controller 30 for controlling the driving unit 50 and the display unit 180.