Vacuum cleaner

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Solution Overview

Problem

Existing vacuum cleaners require disassembly of the cleaner body to replace or charge the battery, causing user inconvenience.

Innovation Solution

A vacuum cleaner design with a battery chamber and a rotatable battery cover that allows battery insertion and charging without disassembling the cleaner body, featuring a charging stand with an opening prevention rib to secure the battery cover during charging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the battery assembly is provided inside the cleaner body, then the battery is protected and secured, but the cleaner body must be disassembled to replace or charge the battery, causing user inconvenience

Engineering Contradiction:
Improvebattery securityVSAvoidbattery replacement convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The battery assembly is designed as a separate, detachable unit that can be independently removed from the cleaner body through a battery chamber, allowing users to replace or charge the battery without disassembling the entire cleaner body

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The battery assembly is extracted from the internal structure and placed in a dedicated battery chamber with a removable cover, enabling external access and replacement of the battery while maintaining the integrity of the main cleaner body

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If the battery cover is made rotatable for easy opening, then battery access is improved, but the battery cover may accidentally open during charging

Engineering Contradiction:
Improvebattery cover accessibilityVSAvoidbattery cover security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The battery cover is designed to rotate between a closed position and an open position, providing dynamic accessibility while maintaining security when closed through the opening prevention mechanism

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The opening prevention rib creates a preliminary constraint that prevents the battery cover from opening during charging operations, countering the potential accidental opening before it can occur

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS10188249B2Vacuum cleaner
Publication Date: 2019.01.29 LG ELECTRONICS INC
  • US10188249B2 patent drawingFigure N/A

AI summary

A vacuum cleaner includes: a cleaner body including a battery chamber; a motor provided in the cleaner body to provide suction force; a battery detachably mounted in the battery chamber to provide electric power to the motor; a battery cover rotatably mounted in the cleaner body to open and close the battery chamber; and a charging stand on which the cleaner body is held and which includes an opening prevention rib located on a rotation path of the battery cover in a state in which the cleaner body is held on the opening prevention rib and preventing opening of the battery cover.