Vacuum Cleaner Combing Unit Isolator to Reduce Roller Contact Noise
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Solution Overview
Problem
Vacuum cleaners face challenges in reducing noise and vibration caused by debris entanglement around the cleaning roller, which affects the efficiency of debris removal and user experience.
Innovation Solution
Incorporating a combing unit with spaced teeth and angled edges to remove debris while using a combing isolator made from elastomeric materials to absorb vibration, reducing noise and vibration levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a debriding rib with teeth contacts the roller to remove debris, then debris removal effectiveness is improved, but noise and vibration increase
Solution Approach 1:
A combing isolator made of elastomeric material is introduced as an intermediary component between the debriding rib and the housing. This isolator absorbs vibrations generated when the teeth contact the roller, reducing noise and vibration transmission to the housing while preserving the debris removal function of the debriding rib
Solution Approach 2:
The patent changes the material parameter of the isolator to elastomeric material, which has vibration-absorbing properties. This material parameter change allows the isolator to dampen vibrations from the tooth-roller contact, reducing harmful noise and vibration while maintaining effective debris removal
2Productivity
If the suction conduit is directly engaged with the surface to prevent air leakage, then suction efficiency is improved, but the suction motor may be damaged due to excessive pressure
Solution Approach 1:
The suction conduit is designed to be directly engaged with the surface to maximize sealing and suction efficiency, but a pressure relief valve is incorporated to partially release excessive pressure. This allows the system to operate at high efficiency while protecting the motor from damage through controlled pressure release
3Productivity
If the suction conduit is spaced far from the surface to allow air flow, then air flow is improved, but suction efficiency decreases due to greater surface area
Solution Approach 1:
The suction conduit is designed with adjustable positioning parameters that allow optimization of the distance from the surface. This enables the system to achieve both good sealing for high suction efficiency and sufficient air flow by adjusting the conduit position to an optimal distance
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 solution effectively reduces noise and vibration, enhancing the user experience and improving debris removal efficiency by minimizing unwanted noise and vibration during operation.
Implementation Method 1
a combing isolator (500) at least partially formed from a material configured to absorb vibration caused by contact between the combing unit (149) and a cleaning roller (124)
Implementation Method 2
a combing isolator (500) at least partially formed from a material configured to absorb vibration
Data Source
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AI summary
A cleaning apparatus may include at least one isolator configured to absorb mechanical vibration generated by contact between an agitator and a combining unit to reduce noise and/or vibration. The isolator may include at least one combing isolator disposed at least partially between the combing unit and the surface cleaning head. Alternatively (or in addition), the isolator may include a panel isolator disposed at least partially between a housing of the cleaning apparatus and a panel.