Power assembly and surface cleaning apparatus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wet surface cleaning devices face issues with water vapor entering the power assembly, leading to potential damage, contamination, and sewage accumulation, which affects the device's performance and user experience.
Innovation Solution
A power assembly with a silencing hood featuring a perforated plate and outer wall that condenses water vapor into liquid, which is then discharged through a water outlet, while the airflow is discharged through an air outlet, separating water and gas effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water vapor is not discharged from the power assembly, then the power assembly structure remains simple, but water vapor accumulates causing damage and contamination
Solution Approach 1:
The exhaust port is divided into two separate outlets: an air outlet for discharging water vapor and gas, and a water outlet for discharging condensed liquid. This segmentation allows the system to handle different phases of waste products separately, improving reliability without requiring complex internal discharge mechanisms.
Solution Approach 2:
The harmful water vapor and condensed water are extracted and discharged from the power assembly through dedicated outlets. By removing the harmful substances from the system, the reliability is improved while the structure remains relatively simple through direct discharge paths.
2Object-generated harmful factors
If water vapor condenses on internal surfaces, then water can be collected and discharged, but the housing becomes contaminated and sewage accumulates
Solution Approach 1:
The water vapor that would otherwise contaminate the housing is converted into a beneficial resource by condensing it on the silencing hood surfaces and channeling it to a water outlet for discharge. The harmful water vapor becomes collectable liquid water that can be separately discharged, preventing housing contamination.
Solution Approach 2:
The silencing hood acts as an intermediary surface between the water vapor in the exhaust airflow and the housing interior. Water vapor condenses on the silencing hood rather than directly on the housing, and the condensed water is channeled through a water outlet, preventing direct contamination of the housing while still removing the harmful moisture.
3Object-generated harmful factors
If the silencing hood is added to condense water vapor, then water discharge is improved, but the device complexity increases
Solution Approach 1:
The silencing hood is given multiple functions: it not only reduces noise from the power source but also serves as a condensation surface for water vapor and a channel for directing condensed water to the water outlet. By making the silencing hood multi-functional, the system improves water vapor discharge capability without adding separate dedicated components for each function.
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 prevents water accumulation and contamination, prolongs the power assembly's service life, and enhances user experience by ensuring clean discharge and reduced noise levels.
Implementation Method 1
water vapor in a working airflow condenses into liquid on the perforated plate and/or the outer wall
Data Source
AI summary
A power assembly and a surface cleaning apparatus. The power assembly includes: a housing, which includes an air outlet and a water outlet; a power source, which is located in the housing and configured to provide fluid power; and a silencing cover, which is arranged between the power source and the housing, and includes a perforated plate and an outer side wall, where water vapor in a working airflow is condensed into liquid on the perforated plate and/or the outer side wall and then drained from the water outlet, and the working airflow that is not condensed into liquid is drained from the air outlet.