Removable Air Purifier Closure Assembly for Safe UV Lamp Access
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Solution Overview
Problem
Existing air purifiers face challenges in manufacturing, operation, and design, particularly in ensuring the lighting system is powered only when the closure assembly is in the closed position, and in providing easy access and safety for filter and bulb replacement.
Innovation Solution
An air purifier design featuring a closure assembly that is selectively movable between closed and opened positions, incorporating a filter mount and a bulb mount, where power is only available to the light source when the closure assembly is fully closed, and a removable drawer-style closure assembly for easy access and replacement of filters and bulbs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the closure assembly is made removable for easy filter and bulb replacement, then ease of operation is improved, but device complexity increases due to additional mounting structures and electrical connection mechanisms
Solution Approach 1:
The closure assembly is designed as a separable component that can be removed from the housing, allowing the filter and bulb to be accessed and replaced without disassembling the entire device. This segmentation enables easy maintenance while maintaining a relatively simple overall structure.
Solution Approach 2:
The closure assembly with filter and bulb is extracted as a separate serviceable unit. Users can remove this specific component for maintenance purposes and reattach it, avoiding the need to disassemble the entire air purifier housing and reducing the complexity of the maintenance process.
2Reliability
If power is made available to the light source only when the closure assembly is fully closed, then safety is improved, but ease of operation worsens due to restricted access during open positions
Solution Approach 1:
The electrical connection mechanism is designed to prevent power from reaching the light source unless the closure assembly is properly positioned in the closed state. This preliminary safety measure ensures that the light source cannot operate when the device is open, preventing accidental exposure to UV light while still allowing easy access during maintenance when power is naturally off.
3Object-affected harmful factors
If the closure assembly is designed to prevent power availability when opened, then harmful factors are reduced, but device complexity increases due to interlocking mechanisms
Solution Approach 1:
The safety mechanism is merged with the closure assembly itself. The electrical contacts are integrated into the closure assembly structure, so that the act of closing the assembly naturally completes the electrical circuit and enables power to the light source. This combines the safety function with the existing mechanical structure without adding separate complex control systems.
Solution Approach 2:
The closure assembly automatically controls power availability through its position. When closed, it self-activates the light source by completing the electrical connection; when open, it self-disconnects power. This eliminates the need for separate sensors, switches, or control circuits to monitor the assembly position.
Data Source
AI summary
An air purifier for inside air. The air purifier includes a housing and a closure assembly. The closure assembly is slideably and selectively removable from the housing. The closure assembly includes a cage on which a filter can be mounted. One or more sensors can detect the location of the closure assembly relative to the housing.