Vacuum Cleaner Dust Bin State Detection by Pressure Ratio
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Solution Overview
Problem
Existing vacuum cleaner systems lack an effective method to notify the state of the dust collection part in a station device, particularly in determining when the dust collection part requires replacement or maintenance, leading to potential motor damage and inefficiencies in dust discharge operations.
Innovation Solution
A wireless vacuum cleaner system equipped with a sensor mounted on the suction flow path that measures pressure values before and during dust discharge operations, calculates a ratio of these values, and outputs notification information to indicate the state of the dust collection part, allowing for self-diagnosis and timely maintenance alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the station device performs dust discharge operations frequently, then the dust collection part can be kept clean, but the suction motor may be damaged due to excessive operation
Solution Approach 1:
The system uses a sensor to detect the pressure difference across the dust collection part and provides feedback to the control unit. Based on this feedback, the control unit intelligently determines whether dust discharge is necessary, avoiding unnecessary motor operations while ensuring the dust collection part remains clean. This feedback mechanism resolves the contradiction by making dust discharge operations conditional on actual need rather than following a fixed schedule.
2Reliability
If the station device includes a sensor to detect dust collection part state, then motor damage can be prevented, but the device complexity increases
Solution Approach 1:
The pressure sensor acts as an intermediary element that indirectly detects the dust collection part's state by measuring pressure difference, rather than requiring direct contact or complex inspection mechanisms. This intermediary approach provides reliable state detection while keeping the overall device structure relatively simple, resolving the contradiction between reliability improvement and complexity increase.
3Device complexity
If the sensor is mounted on the suction flow path of the wireless vacuum cleaner, then the state determination is simplified, but the measurement accuracy may be affected by flow conditions
Solution Approach 1:
The patent extracts the pressure measurement function from the complex flow path environment by positioning the sensor to measure pressure difference across the dust collection part specifically. This extraction approach simplifies the determination logic while mitigating flow condition interference by focusing measurement on the critical pressure drop across the dust collection part rather than general flow path pressure variations.
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 solution simplifies the determination of the dust collection part's state, reduces manufacturing costs, and prevents motor damage by providing timely notifications for maintenance, ensuring efficient dust discharge operations and extending the lifespan of the vacuum cleaner system.
Implementation Method 1
A wireless vacuum cleaner system equipped with a sensor mounted on the suction flow path that measures pressure values before and during dust discharge operations
Data Source
AI summary
A vacuum cleaner system is provided. The vacuum cleaner includes a wireless vacuum cleaner for discharging dust to a station device, wherein the wireless vacuum cleaner is configured to, when performing a dust discharge operation to the station device, determine a state of a dust collection part included in the station device, based on a pressure ratio between pressure values measured by a sensor mounted on the wireless vacuum cleaner, and output a notification indicating the determined state.