Vacuum Cleaner Distance Sensor Design for Wall Surface Corner Suction
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Solution Overview
Problem
Existing vacuum cleaners struggle to effectively clean dust from wall surfaces, particularly at corners, due to the suction nozzle's design which fails to concentrate suction force at specific points when it touches the wall and doesn't advance forward.
Innovation Solution
A vacuum cleaner design featuring a rotating cleaner with a concave groove flow path and a fluffy outer surface, combined with a distance sensor to increase suction force when near a wall, ensuring seamless delivery of suction force to the wall surface and efficient dust pickup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the suction nozzle touches the wall surface and does not advance forward, then the rotating cleaner is located between the front space and rear space, but the suction force cannot be concentrated at the wall surface corner portion, resulting in ineffective cleaning
Solution Approach 1:
The suction nozzle is divided into multiple functional zones: a front suction port for wall surface cleaning, a rear suction port for floor cleaning, and a rotating cleaner with segmented brush portions. The front suction port is specifically positioned to target wall surface corner portions, while the rear suction port handles floor dust, allowing concentrated suction force at different locations simultaneously
Solution Approach 2:
The suction nozzle is designed to operate in three-dimensional space, allowing it to touch the wall surface while the rotating cleaner extends forward to reach the wall-floor junction. The front suction port is positioned at the front end of the nozzle to directly face wall surface corner portions, creating a multi-dimensional cleaning approach that overcomes the limitation of two-dimensional floor cleaning
2Productivity
If the brush is formed only on a part of the outer peripheral surface of the agitator, then the front space and rear space are in communication, but the suction force is not concentrated and significant time is required for sucking all foreign substances
Solution Approach 1:
The rotating cleaner is equipped with multiple brushes arranged in different directions: first and second brushes extending in the rotating direction, and third and fourth brushes extending in the axial direction. This segmentation allows different portions of the cleaner to target different types of dust simultaneously, improving cleaning speed without sacrificing suction force concentration
Solution Approach 2:
The rotating cleaner serves multiple functions: the brushes on the outer peripheral surface sweep floor dust, while the axial brushes and front suction port handle wall surface corner dust. This multi-functionality allows the single rotating cleaner component to address both floor and wall cleaning needs, increasing productivity without requiring multiple separate devices
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
The design allows for effective suction of dust from wall surfaces, including corners, by concentrating suction force at specific points and optimizing energy usage, ensuring efficient cleaning while minimizing battery consumption.
Implementation Method 1
A motor is provided inside the cleaner body, and a suction force can be generated while the motor rotates. The suction force generated inside the cleaner body can be delivered to the suction nozzle, and external dust can be sucked into the vacuum cleaner through the suction nozzle.
Implementation Method 2
a first flow path which is a concave groove form is formed on an outer peripheral surface of the rotating cleaner, and the first flow path is configured in a direction inclined to a first rotary axis while crossing a fluffy
Data Source
AI summary
A vacuum cleaner is disclosed. The vacuum cleaner comprises: a suction nozzle including a rotating cleaner located in front of a suction port; a cleaning main body provided with a first motor that generates a suction force; and a distance sensor coupled to the suction nozzle. The distance sensor detects a distance from a wall surface located in front of the suction nozzle, and when the distance (distance value) is less than or equal to a reference value, the rotation speed of the first motor is increased. Accordingly, when the suction nozzle touches the wall surface and cannot move forward, the suction force is momentarily increased such that foreign substances such as dust can be effectively sucked in from the edge of the wall surface, and effective use of a battery can be achieved.