Humidification and purification apparatus
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Solution Overview
Problem
Existing humidification and purification apparatuses suffer from low humidification and purification capacities, high noise levels, and issues related to bacterial growth due to prolonged wet pad immersion.
Innovation Solution
A humidification and purification apparatus with a backward centrifugal blower system, an elevation mechanism for the wet pad, and a nested arrangement of the purification and humidification modules, which includes a water level detection system to control the wet pad's immersion and elevation, reducing noise and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a forward centrifugal blower system is used and disposed close to air inlet, then the device structure is simplified, but purification capacity and humidification capacity are low and noise is high
Solution Approach 1:
The patent inverts the conventional blower arrangement by using a backward centrifugal blower disposed close to the air outlet instead of a forward centrifugal blower near the air inlet. This inversion allows the blower to be driven by airflow from the purification module, enabling the purification module to be positioned closer to the air inlet and improving both purification capacity and humidification capacity while maintaining structural simplicity
2Productivity
If the wet pad is always immersed in water to maintain humidification function, then humidification capacity is improved, but bacterial growth is promoted
Solution Approach 1:
The patent applies a lifting mechanism that dynamically adjusts the wet pad's position relative to the water reservoir. The wet pad can be lifted above the water surface when not in use and lowered to contact water during humidification operation. This dynamic positioning maintains humidification capacity while preventing continuous immersion that causes bacterial growth
Solution Approach 2:
The lifting mechanism implements periodic action by alternately submerging and exposing the wet pad to water based on operational requirements. During humidification, the pad is submerged; during non-operation or maintenance periods, it is lifted out of water. This periodic submersion maintains functionality while reducing opportunities for bacterial proliferation
3Object-generated harmful factors
If the wet pad is lifted above water level to prevent bacterial growth, then harmful factors are reduced, but humidification capacity decreases
Solution Approach 1:
The lifting mechanism provides dynamic control of the wet pad position, allowing it to be raised to prevent bacterial growth during non-operational periods and lowered to contact water when humidification is required. This dynamic adjustment resolves the contradiction by making the pad position adaptive rather than fixed
4Ease of manufacture
If the purification module and humidification module are arranged separately, then each module can be optimized independently, but device volume increases
Solution Approach 1:
The patent implements nested arrangement where the humidification module is positioned within the space occupied by the purification module. Specifically, the wet pad is disposed in the annular space between the purification module and the blower, and the lifting mechanism utilizes the vertical space within the purification module housing. This nesting reduces overall device volume while maintaining independent optimization of each module
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
Enhances purification and humidification efficiencies, reduces noise, and prevents bacterial growth by controlling wet pad immersion, resulting in improved performance and air quality.
Implementation Method 1
a wet pad (22)...immersed into water in the wet pad water tank (21)
Implementation Method 2
a backward centrifugal blower system
Data Source
Figure 1
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AI summary
The present application discloses a humidification and purification apparatus, which includes: a machine body provided with an air inlet and an air outlet; a purification and humidification module disposed in the machine body and close to the air inlet; and a blower disposed in the machine body and close to the air outlet. The purification and humidification module includes: a humidification module including a wet pad water tank, a wet pad and an elevation mechanism. The elevation mechanism is connected to the wet pad and is configured to drive the wet pad to move, so that the humidification module can be switched between a humidifying state and a non-humidifying state. In the humidifying state, part of the wet pad is immersed into the water in the wet pad water tank, and in the non-humidifying state, the wet pad is lifted above the water level of the wet pad water tank. The purification and humidification module further includes a purification module with an annular shape and at least partially sleeved outside a part of the wet pad extending out of the wet pad water tank. The humidification and purification apparatus improves the efficiency of purification and humidification, reduces operation noise, avoids the wet pad from being immersed in water for a long time, and improves service performance of the humidification and purification apparatus.