Air Purifier Lifting Assembly for Filter Sealing and Easy Replacement
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Solution Overview
Problem
Existing air purifiers face challenges in maintaining effective sealing of the filter screen with the air inlet of the fan, which affects filtering efficiency and requires complicated dismounting for filter replacement, leading to poor user experience.
Innovation Solution
An air purifier design featuring a base assembly with a carrier part and a lifting part that allows easy mounting and dismounting of the filter screen, utilizing a pull-push mechanism to control the vertical movement of the carrier part, ensuring both easy replacement and improved sealing through screw or connecting rod assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the filter screen is made dismountable for easy replacement, then the ease of operation is improved, but the sealing between the filter screen and air inlet deteriorates
Solution Approach 1:
The filter screen assembly is designed with dynamic mounting and dismounting capabilities through the lifting assembly mechanism. The carrier part can be vertically moved between a mounted state (providing good sealing) and a dismounted state (enabling easy replacement), transforming a static structure into a dynamic one that adapts to different operational needs.
Solution Approach 2:
The lifting assembly acts as an intermediary mechanism between the user's manual operation and the filter screen assembly. It provides a controlled interface that enables easy dismounting while maintaining sealing integrity during operation, mediating between the conflicting requirements of ease of replacement and sealing quality.
2Productivity
If the filter screen is made tightly sealed with the air inlet, then the purification efficiency is improved, but the complexity of dismounting increases
Solution Approach 1:
The sealing structure is made dynamic through the lifting assembly, allowing the filter screen assembly to be in a tightly sealed state during operation (maximizing purification efficiency) and easily separable when needed for replacement. The dynamic mechanism simplifies the dismounting process without compromising sealing when mounted.
Solution Approach 2:
The sealing function is extracted from a permanent fixed connection and implemented through a controllable mounting mechanism. The lifting assembly separates the sealing requirement from the structural connection, allowing the filter screen assembly to achieve good sealing when mounted while enabling simple dismounting through the external pull-push operation.
3Ease of operation
If a simple dismountable filter screen is used, then the ease of operation is improved, but the sealing effect deteriorates
Solution Approach 1:
The filter screen assembly transitions from a static fixed or simple dismountable design to a dynamic system with controlled mounting and dismounting. The lifting assembly provides a mechanism that achieves both easy operation (through external pull-push) and reliable sealing (through controlled vertical movement and positioning), resolving the contradiction between simplicity and sealing effectiveness.
Solution Approach 2:
The lifting assembly serves as an intermediary that bridges the gap between simple dismountability and effective sealing. It provides a controlled interface that enables easy installation and removal while ensuring proper sealing engagement when the filter screen assembly is in the mounted position, mediating between operational simplicity and sealing reliability.
Data Source
AI summary
An air purifier comprising a main unit, a base assembly below the main unit, a filter screen assembly inside the main unit and an air supply device above the filter screen assembly, wherein the base assembly comprises a carrier part on which the filter screen assembly is provided and a lifting part that is located below the carrier part and abuts the carrier part. The lifting part comprises a pull-push part and a lifting assembly configured such that when the pull-push part makes a translation in a first direction, the lifting assembly controls the carrier part to descend and separate the filter screen assembly from the air supply device, and when the pull-push part makes a translation in a second direction opposite the first direction, the lifting assembly controls the carrier part to rise and achieve a sealed connection between the filter screen assembly and the air supply device.