UV Ozone Air Purifier Control for Early Lamp and Fan Failure Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing room air cleaners with ozone generators and UV lamps lack effective mechanisms for early detection of UV lamp and fan unit failures, leading to inefficient ozone generation and air purification, and do not provide flexible control over ozone emission and air distribution.
Innovation Solution
The room air cleaner incorporates an adjustable driver circuit for the UV lamp and a microcontroller-controlled fan unit with sensors for early failure detection, along with baffle elements and a modular design for ozone emission control, allowing for adjustable UV radiation power, air throughput, and ozone saturation, and enables remote monitoring and maintenance notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UV lamp power is increased to improve ozone generation efficiency, then ozone production increases, but energy consumption increases
Solution Approach 1:
The driver circuit enables dynamic adjustment of UV lamp power through frequency and voltage control, allowing the system to optimize between ozone generation efficiency and energy consumption based on operational requirements
Solution Approach 2:
The system changes electrical parameters (frequency, voltage) of the driver circuit to control UV lamp output power, enabling flexible adjustment of ozone production levels while managing energy consumption
2Productivity
If fan unit speed is increased to improve air circulation, then air throughput increases, but device complexity increases
Solution Approach 1:
The fan unit incorporates variable speed control capability, allowing dynamic adjustment of rotational speed to optimize air throughput while managing system complexity through integrated control
Solution Approach 2:
The sensor provides feedback on fan unit operational status and performance, enabling the control system to monitor and adjust fan speed to maintain optimal air circulation
3Reliability
If early failure detection is implemented for UV lamp and fan unit, then reliability improves, but device complexity increases
Solution Approach 1:
The sensor provides feedback signals to the microcontroller about fan unit status and UV lamp ignition state, enabling early failure detection through continuous monitoring without requiring complex additional systems
Solution Approach 2:
The microcontroller acts as an intermediary that processes sensor data and driver circuit status information to detect potential failures before they occur, maintaining reliability while managing complexity through software-based monitoring
4Ease of operation
If baffle elements are added to control ozone emission, then ozone distribution improves, but device complexity increases
Solution Approach 1:
The housing is segmented with removable baffle elements that can be independently adjusted or removed, allowing flexible control of ozone emission patterns while maintaining relatively simple overall device structure
Solution Approach 2:
The baffle elements are designed to be removable and reconfigurable, enabling dynamic adjustment of ozone distribution patterns within the housing to optimize emission control for different operational conditions
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
This solution enables early detection of UV lamp and fan unit failures, optimizes ozone generation and air purification efficiency, and allows for flexible ozone emission and air distribution, improving the overall performance and maintenance of the air cleaner.
Implementation Method 1
an adjustable driver circuit which, upon receiving a signal from a microcontroller, ignites the UV lamp and operates it in such a way that the electrical power and thus the UV light radiation power is adjustable
Implementation Method 2
The air passes through the ozone generator, where the ozone combines with odor molecules in the air, eliminating odors, germs, viruses, and bacteria
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An air purifier (21) comprising a housing (22) is proposed in which an ozone generator with a UV lamp (2) is arranged, wherein, viewed axially, a fan unit (17) is arranged on one end face of the housing, which causes a flow to or from an axially opposite end face of the housing (22), wherein an opening is provided on both end faces of the housing (22), wherein the air purifier has an adjustable driver circuit (1) which, upon a signal from a microcontroller (16), ignites the UV lamp (2) and operates it in such a way that the UV light radiation power is adjustable, wherein a transformer is provided via which the status of the UV lamp (2) is coupled out, which is then detected via an optocoupler (12) and transmitted to the microcontroller (16) for evaluation for the purpose of early lamp failure detection.wherein the fan unit (17) can be activated by means of the microcontroller (16) and is designed such that the speed is adjustable, wherein a sensor is integrated into the fan unit (17) which detects the speed and transmits it to the microcontroller (16) for evaluation for the purpose of early detection of fan unit failure.