Air Purifier Head Rotation Structure for Stable Dual-Axis Airflow
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Solution Overview
Problem
Traditional air purifiers face challenges in independently and stably rotating their discharge direction, leading to limited vertical movement, difficulty in visually indicating the discharge direction, and a risk of foreign substances getting caught, resulting in unstable operation and potential accidents.
Innovation Solution
The design separates the air purifier into a head portion for air discharge and a body portion with mechanical parts, allowing independent vertical and horizontal rotation of the head portion, with a neck portion facilitating these movements and incorporating guide elements and rollers for stability and smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flow conversion device is mounted on the discharge guide device for vertical rotation, then vertical rotation is enabled, but the combination is not sufficiently stable causing shaking during horizontal rotation
Solution Approach 1:
The patent divides the rotating structure into three independent segments: the discharge guide device (for horizontal rotation), the flow conversion device (for vertical rotation), and the blowing device (base). Each segment has its own rotation mechanism and bearing support, eliminating the instability caused by nested mounting where one rotating device is mounted on another rotating device.
2Ease of operation
If the gear for vertical rotation is provided at the bottom of the rear side of the flow conversion device, then vertical rotation is achieved, but the gear is exposed to the outside creating safety risks
Solution Approach 1:
The patent introduces a cover as an intermediary component that encloses the gear and bearing assembly. The cover has a through-hole that allows the drive shaft to pass through while protecting the gear from external contact. This mediator component eliminates direct exposure of the rotating gear to the outside environment, preventing foreign substances and fingers from being trapped.
3Device complexity
If all air purifying configurations are provided in the blowing device at the bottom, then the flow conversion device only needs to change flow direction, but this results in a large product size and complex structure
Solution Approach 1:
The patent merges the air purifying functions (filters, fan assembly, humidifier, ionizer) directly into the head portion, which is integrated with the flow conversion device. This consolidation eliminates the need for a separate blowing device housing, reducing overall product size while maintaining functional separation between air purification and flow direction control.
4Device complexity
If a single housing with variable grill is used for discharge portion adjustment, then the structure is simple, but the vertical movement width is limited and foreign substances are caught between grills
Solution Approach 1:
The patent segments the discharge portion into a separate head portion that can rotate independently from the body portion. This segmentation enables a much wider discharge direction range (nearly 360 degrees horizontally and vertically) compared to the limited variable grill rotation in single-housing designs, while eliminating the problem of foreign substances getting caught between grill bars.
Data Source
AI summary
The present invention relates to an air purifier in which vertical rotation and horizontal rotation are performed simultaneously and independently and which has a stable structure.