Electric vacuum cleaner device

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Solution Overview

Problem

Conventional electric vacuum cleaners require user operation to connect dust containers, which is cumbersome and increases the weight of the cleaner body when a motor is used for air passage control, compromising convenience.

Innovation Solution

An electric vacuum cleaner system where the station, rather than the cleaner body, includes a drive source to open and close the dust container lids and air passages, using a coupler and cam mechanism for power transmission, allowing for automatic dust transfer without adding weight or user effort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a drive source such as a motor is mounted on the cleaner body to open and close air passages and switch between dust containers, then the air passage switching is automated, but the weight of the cleaner body increases

Engineering Contradiction:
Improveair passage switching automationVSAvoidcleaner body weight
Core Design Contradiction:
Extent of automationVSWeight of moving object

Solution Approach 1:

The drive source is extracted from the cleaner body and relocated to the charging station. The station's drive source operates a power transmission mechanism that connects to the cleaner body only when docked, eliminating the need to carry the motor during cleaning operations while still achieving automated air passage switching.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

A power transmission mechanism acts as an intermediary between the station's drive source and the cleaner body's air passage components. This mechanism transmits driving force only when the cleaner is docked at the station, enabling automated operation without permanently attaching the motor to the cleaner body.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Extent of automation

If a drive source is mounted on the cleaner body for dust container operation, then dust transfer is automated, but the ease of handling decreases

Engineering Contradiction:
Improvedust transfer automationVSAvoidease of handling
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The drive source is removed from the cleaner body and placed in the charging station. The cleaner body becomes lighter and easier to handle during cleaning operations, while the automated dust transfer function is still achieved through the station's drive source and power transmission mechanism when docked.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If manual operation is required to push the push button for connecting dust containers, then no additional drive source is needed, but the user burden increases

Engineering Contradiction:
Improvedrive source configurationVSAvoiduser burden
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The system provides self-service automation where the station's drive source automatically operates the air passage switching and dust container connection without requiring user intervention. The user simply needs to dock the cleaner at the station, and the system handles the remaining operations automatically.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11272820B2Electric vacuum cleaner device
Publication Date: 2022.03.15 TOSHIBA LIFESTYLE PROD & SERVICES CORP
  • US11272820B2 patent drawing
  • US11272820B2 patent drawing
  • US11272820B2 patent drawing

AI summary

A vacuum cleaner includes a primary dust container that includes a container body, the container body delineating a dust collecting chamber that accumulates dust sucked into the vacuum cleaner and including a waste outlet that discharges the dust accumulated in the dust collecting chamber, the primary dust container also including a waste-outlet lid that opens and closes the waste outlet. A station includes a secondary dust container that accumulates the dust discharged from the primary dust container, and a driving source that generates opening driving force and closing driving force for the waste outlet. The electric vacuum cleaner generates a driving force for opening and closing an air passage connecting a primary dust container and a secondary dust container, without impairing convenience of a vacuum cleaner.