Vacuum Cleaner Brush Set With Detachable Power Lead Connection
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Solution Overview
Problem
Existing floor care appliances, such as brush vacuum cleaners, require complex electrical connections that are prone to faults when handled incorrectly, necessitating professional repairs and limiting user flexibility in exchanging power leads.
Innovation Solution
The brush set contains an external connector plug for a detachable electrical connection to a mains connection lead, forming a functional electrical unit separate from the filter housing, allowing for tool-free exchange of power leads by laypersons, with a guide sleeve and strain relief for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mains connection lead is firmly connected to the attachable filter housing with electrical junctions at interfaces, then electrical connection stability is improved, but device complexity increases and ease of repair deteriorates
Solution Approach 1:
The patent extracts the electrical connection components (mains connection lead, connector plug, appliance coupling) from the filter housing and relocates them to the brush set. This separation eliminates the need for electrical junctions at the filter housing interface, reducing device complexity while maintaining connection stability through dedicated connector interfaces.
Solution Approach 2:
The patent segments the electrical connection system into distinct functional parts: the connector plug integrated into the pivotable connecting element of the brush set, and the appliance coupling on the mains connection lead. This segmentation allows independent replacement of the mains connection lead without affecting the filter housing or brush set electrical components.
2Reliability
If electrical junctions are provided at interfaces to control electrical drive, then electrical connection reliability is improved, but ease of repair deteriorates and device complexity increases
Solution Approach 1:
The patent removes electrical junctions from the filter housing and concentrates all electrical connection components within the brush set. The mains connection lead connects directly to the connector plug on the pivotable connecting element, eliminating intermediate electrical junctions that would complicate repairs. Users can replace the mains connection lead by simply disconnecting the appliance coupling from the connector plug.
3Reliability
If the filter housing contains integrated electrical elements, then electrical connection stability is improved, but adaptability deteriorates and ease of operation worsens
Solution Approach 1:
The patent extracts all electrical elements from the filter housing and consolidates them in the brush set. The filter housing becomes a purely mechanical component without electrical connections, allowing users to freely exchange mains connection leads by simply plugging and unplugging the appliance coupling from the connector plug on the brush set, greatly enhancing adaptability.
Solution Approach 2:
The patent introduces dynamic exchangeability to the electrical connection system. The mains connection lead is designed with a detachable appliance coupling that can be easily connected and disconnected from the connector plug, enabling flexible adaptation to different power supply requirements without permanent固定 connections.
4Reliability
If mains connection lead exchange requires professional intervention, then connection reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent enables self-service exchange of the mains connection lead by designing the appliance coupling and connector plug interface for tool-free connection and disconnection. Users can safely replace the mains connection lead themselves by simply unplugging the appliance coupling from the connector plug on the brush set, without requiring professional electrical knowledge or tools, while maintaining reliable electrical connections.
Data Source
AI summary
In a vacuum cleaner it is provided that a brush set can be connected via a pivotable connecting element in the form of a connecting piece for an attachable filter housing to a handle in the form of a hand grip. Here the brush set has an electric motor for a suction fan and for the drive of the brush roller. The pivotable connecting element of the brush set has an external connector plug for an electrical connection to an appliance coupling of a power line connection lead for connection to a power supply, for example, for connection to a wall socket and the like. As a result, the brush set with the integrated motor and a switch for operating control forms a functional electrical unit.