Hand-held vacuum cleaner
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Solution Overview
Problem
Existing handheld vacuum cleaners with pivotable nozzles face limitations in efficiently accessing high and low surfaces due to friction and limited adjustability, making them less effective for varied cleaning tasks.
Innovation Solution
A hand-held vacuum cleaner design featuring a pivotable nozzle with a rotatable dirt container and connection assembly using rolling elements to reduce friction, allowing smooth rotation and adjustable positioning, along with a retractable nozzle and detachable filter assembly for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pivotable nozzle is provided in a handheld vacuum cleaner, then the ability to reach high and low surfaces is improved, but friction and limited adjustability worsen the ease of operation
Solution Approach 1:
The patent replaces traditional friction-based pivot mechanisms with a magnetic field-based adjustment system. The magnetic field acts on a magnet embedded in the nozzle, enabling frictionless rotation and positioning between fixed and floating modes, thereby eliminating the friction problem while maintaining adaptability
Solution Approach 2:
The patent introduces a floating mode where the nozzle can be positioned using air pressure differential created by the vacuum itself. This pneumatic positioning system allows the nozzle to float at desired positions without mechanical friction, improving ease of operation while maintaining versatility
2Adaptability or versatility
If the nozzle is made pivotable for accessing various surfaces, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent eliminates complex mechanical pivot mechanisms by using magnetic field interaction. A magnet embedded in the nozzle interacts with a magnetic field generated by the main body, providing automatic centering and positioning without complex mechanical structures, thus reducing device complexity while maintaining adaptability
Solution Approach 2:
The magnetic field system provides self-centering and self-positioning functionality. The nozzle automatically returns to its centered position when released, and the floating mode allows it to settle at desired positions without manual intervention, reducing the need for complex control mechanisms
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 the vacuum's ability to reach various surfaces with reduced friction and improved adjustability, providing efficient cleaning capabilities and ease of maintenance.
Implementation Method 1
connection assembly with rolling elements to reduce friction
Data Source
AI summary
A hand-held vacuum cleaner includes a main body including a casing and a motor fan assembly arranged in the casing. A dirt container is rotatably connected to the main body and has a hollow barrel communicating with the casing. A nozzle has a first end fixed to the barrel and a second opposite end defining an air inlet communicating with the barrel to allow air to be sucked into the air inlet. A connection assembly includes a first connection member, a second connection member and multiple rolling members. The first connection member is fixed to the main body and has a first surface. The second connection member is connected to one end of the barrel and rotatably connected to the first connection member. The second connection member has a second surface facing the first surface. The first surface defines a circular groove, and the second surface defines multiple receiving holes.