Flow Channel Displacement for Cleaning Device Sound Frequency Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for improving sound quality in cleaning devices, such as sound absorption and noise cancellation, often compromise the natural acoustic pattern and user perception of the device's functionality, leading to either excessive quietness or objectionable noise levels.
Innovation Solution
A displaceable section within the flow channel of the cleaning device is adjusted to modify sound frequencies, allowing for a defined amplitude, which can be done manually or automatically, to achieve a balanced and agreeable soundscape by influencing the sound spectrum through displacement based on analysis of detected sound frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If sound absorption devices are used to reduce noise, then the sound emission of the cleaning device is reduced, but the natural acoustic pattern is compromised and user perception of device functionality is impaired
Solution Approach 1:
The patent applies local quality by positioning sound absorption elements at specific locations within the device housing rather than uniformly throughout. The control unit selectively activates absorption elements corresponding to specific frequency ranges that are identified as harmful or annoying, while preserving other frequency ranges that carry functional information. This localized approach allows reduction of unwanted noise while maintaining the natural acoustic pattern that users need to perceive device functionality.
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting the absorption characteristics of sound absorption elements based on detected sound frequencies. The control unit analyzes the acoustic pattern in real-time and modifies the activation state of absorption elements to change the frequency-dependent absorption parameters. This allows the device to adaptively reduce specific problematic frequencies while preserving the overall natural acoustic pattern.
2Object-affected harmful factors
If noise cancellation methods are applied, then the operating noise is reduced, but the most natural acoustic pattern cannot be preserved
Solution Approach 1:
The patent implements feedback by using a control unit that continuously detects the acoustic pattern generated by the cleaning device and uses this information to adjust the activation of sound absorption elements. The control unit receives input about the current sound frequencies being generated and dynamically modifies the absorption characteristics in response. This feedback mechanism allows the device to maintain a natural acoustic pattern by preserving frequencies that are characteristic of proper device functionality while reducing unwanted noise.
Solution Approach 2:
The patent applies dynamics by making the sound absorption characteristics adjustable and changeable during operation rather than fixed. The control unit can dynamically activate or deactivate specific absorption elements based on the detected acoustic pattern and operating conditions. This dynamic approach allows the device to adapt its noise reduction behavior to different operating scenarios while preserving the natural acoustic pattern that indicates proper functionality.
3Object-affected harmful factors
If sound frequencies are reduced to achieve quieter operation, then user awareness of proper functioning is lost, but excessive quietness leads to objectionable perception
Solution Approach 1:
The patent applies partial action by selectively reducing only certain frequency ranges that are perceived as annoying or harmful, rather than uniformly reducing all sound frequencies. The control unit identifies specific frequency bands that contribute to unwanted noise and activates absorption elements targeted at those ranges, while leaving other frequency ranges that carry functional information relatively unaffected. This partial reduction approach maintains user awareness of device functionality while achieving quieter overall operation.
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
This approach enables the cleaning device to operate at a non-obtrusive sound level while maintaining user awareness of its proper functioning, as the sound frequencies are adjusted to meet user expectations and preferences, enhancing the overall user experience.
Implementation Method 1
A displaceable section assigned to a flow channel of the cleaning device is displaced relative to the flow channel and/or the device housing in dependence on the analysis result until a sound frequency, which is characteristic for the cleaning activity and emitted by the cleaning device, has a defined amplitude
Data Source
AI summary
A method for influencing the device-typical sound emission of a cleaning device, wherein the cleaning device has a device housing and a cleaning mechanism for carrying out a cleaning activity on a surface to be cleaned, wherein the cleaning device emits device-typical sound while carrying out the cleaning activity, and wherein the device-typical sound is detected and analyzed with respect to at least one sound frequency contained therein. In order to adapt the soundscape of the cleaning device in such a way that a user can ascertain a proper functionality of the cleaning device, a displaceable section assigned to a flow channel of the cleaning device is displaced relative to the flow channel and/or the device housing in dependence on the analysis result until a characteristic sound frequency for the cleaning activity emitted by the cleaning mechanism has a defined amplitude.