Air Purifier Filter Retainer Assembly for Single-Handed Replacement
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Solution Overview
Problem
Existing air purifiers lack efficient mechanisms for securely retaining and easily replacing air purifier units, particularly in complex configurations like dual core setups, which can lead to reduced airflow efficiency and increased maintenance complexity.
Innovation Solution
The air purifier design incorporates a retainer assembly with an actuator that moves from a first to a second position to securely retain the air purifier unit within the housing, utilizing a guide ring and engagement members to ensure proper alignment and retention, allowing for easy installation and replacement of filters, even in dual core configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a retainer mechanism is added to securely retain the air purifier unit, then the reliability of retention is improved, but the device complexity increases
Solution Approach 1:
The retainer assembly is designed to be self-retaining through spring-loaded engagement members that automatically engage with the air purifier unit when inserted, eliminating the need for additional fastening operations or complex locking mechanisms
Solution Approach 2:
The retainer assembly is divided into separate functional components including engagement members, a retainer body, and a release mechanism, allowing each component to perform its specific function independently while simplifying the overall design
2Reliability
If the retainer assembly uses multiple engagement members for secure retention, then the retention reliability is improved, but the ease of operation deteriorates
Solution Approach 1:
Multiple engagement members are combined into a single retainer assembly unit that operates as one integrated component, allowing all engagement members to be actuated simultaneously by a single release action rather than requiring individual manipulation of each engagement member
Solution Approach 2:
The spring-loaded engagement members automatically engage and disengage without requiring manual manipulation, enabling single-handed operation where the user simply inserts or removes the air purifier unit without needing to manually operate each engagement member
3Productivity
If the air purifier unit is securely retained in the housing, then the airflow efficiency is improved, but the ease of repair deteriorates
Solution Approach 1:
The air purifier system is segmented into a removable air purifier unit and a stationary housing with the retainer assembly, allowing the unit to be easily detached for repair or replacement while maintaining secure retention during operation
Solution Approach 2:
The retainer assembly transitions from a static secure retention state during operation to a dynamic release state during maintenance, enabled by the spring-loaded engagement members that can be actuated to quickly transition between retained and removed states
Data Source
AI summary
An air purifier comprises a housing that comprises an intake opening for an inflow of air and an output opening for an outflow of air, a fan, a motor for rotating the fan, a sleeve configured to at least partially surround the fan and/or the motor, an air purifier unit, and a retainer assembly. The air purifier unit is mounted in the housing purifying air flowing through the housing and is operatively coupled to the sleeve. The retainer assembly is configured to retain the air purifier unit in the housing and with respect to the sleeve. The retainer assembly comprises a retainer and an actuator operatively associated with the retainer and the sleeve, wherein movement of the actuator from a first position to a second position moves the retainer to securely retain the air purifier unit in the housing.