Vacuum Muffler Foam Chambers for High-Airflow Noise Reduction
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Solution Overview
Problem
Traditional autonomous cleaning systems are either single-functional or inefficient when attempting to combine vacuuming and mopping, often sacrificing one cleaning function for the other and generating excessive noise due to high airflow requirements.
Innovation Solution
An autonomous vacuum with a dual-roller cleaning head and a muffler system that includes noise-absorbing elements to reduce noise from the vacuum motor, allowing for simultaneous vacuuming and mopping while maintaining high cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high airflow is used to maintain cleaning efficiency, then cleaning performance is improved, but noise level increases due to turbulent airflow
Solution Approach 1:
The patent introduces a muffler as an intermediary component between the vacuum motor and the external environment. The muffler contains a foam layer that acts as a mediator to absorb sound waves from the turbulent airflow, allowing high airflow for cleaning efficiency while reducing noise transmission to the surroundings
Solution Approach 2:
The patent employs a foam layer within the muffler that utilizes porous material properties. The foam structure absorbs sound energy from the turbulent airflow through its porous structure, converting acoustic energy into thermal energy and reducing noise levels while permitting the high airflow necessary for effective cleaning
2Adaptability or versatility
If dual functionality (vacuuming and mopping) is combined in one system, then versatility is improved, but device complexity increases due to multiple components
Solution Approach 1:
The patent implements a unified cleaning system where a single autonomous vacuum device performs both vacuuming and mopping functions. The system uses a common vacuum motor to power both the suction mechanism and the mop roller, allowing one device to handle multiple cleaning tasks that traditionally required separate machines
Solution Approach 2:
The patent merges previously separate vacuuming and mopping systems into a single integrated device. The housing contains both the vacuum motor and the mop roller mechanism, combining two distinct cleaning functions into one unified structure that reduces the number of separate devices needed
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 autonomous vacuum effectively combines vacuuming and mopping functions without sacrificing performance and significantly reduces noise levels through the use of a muffler with foam and fabric layers for sound absorption.
Implementation Method 1
The foam layer is disposed within one of the chambers of the main body and absorbs sound waves incident on the foam layer
Data Source
AI summary
A muffler for an autonomous vacuum includes one or more chambers and one or more noise-absorbing elements for noise reduction of air exhausted into an external environment of the autonomous vacuum. The muffler is coupled to a vacuum stack inclusive of a vacuum motor. The muffler includes a main body, a foam layer, and a sealing plate. The main body includes an inlet for air exhausted by the vacuum motor and forms the one or more chambers fluidically connected to the inlet. The foam layer is disposed within one of the chambers of the main body. The foam layer absorbs sound waves incident on the foam layer. The sealing plate is affixed to the main body and includes an outlet to exhaust air from the chambers to an external environment of the autonomous vacuum.