Air Purifier Grill Assembly with Nested Frames for Simplified Assembly
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Solution Overview
Problem
Existing air purifiers face challenges in effectively removing dust and sterilizing air, particularly in indoor spaces, due to limitations in filtration efficiency and air sterilization methods.
Innovation Solution
The air purifier incorporates a grill assembly with a first grill frame, a second grill frame with smaller intervals, and an edge frame that overlaps the second grill frame, along with a rotation assembly structure to fix the edge frame vertically and restrict rotational movement. This design enhances airflow and protection while allowing for efficient dust removal and air sterilization through the integration of an air sterilizer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a grill assembly with multiple frames and rotation assembly structure is used, then airflow and protection are enhanced, but device complexity increases
Solution Approach 1:
The grill assembly is divided into multiple independent frames (first grill frame, second grill frame, edge frame) that can be separately manufactured and assembled. Each frame serves specific functions: the first grill frame provides structural support, the second grill frame with smaller intervals enhances protection, and the edge frame provides additional structural integrity. This segmentation allows for optimized design of each component while maintaining overall system reliability.
Solution Approach 2:
The grill frames are designed with a nested assembly structure where the second grill frame is positioned within the first grill frame, and the edge frame overlaps and assembles onto the first grill frame. The rotation assembly structure enables nested components to be assembled through rotational movement, creating a compact multi-layered grill assembly that enhances both protection and airflow management.
2Ease of manufacture
If a rotation assembly structure is used to fix the edge frame, then assembly is simplified, but manufacturing precision requirements increase
Solution Approach 1:
The rotation assembly structure transforms a static assembly process into a dynamic one, allowing components to be assembled through rotational movement rather than requiring precise alignment in a fixed position. The edge frame can rotate during assembly to engage with the first grill frame, providing a degree of freedom that simplifies the assembly process while maintaining connection reliability.
Solution Approach 2:
The rotation assembly structure acts as an intermediary mechanism between the edge frame and the first grill frame. It provides a controlled interface that guides the assembly process, allowing the edge frame to be securely attached through rotational movement while accommodating minor dimensional variations and reducing the stringency of manufacturing precision requirements.
Data Source
AI summary
An air purifier is provided. The air purifier includes a fan that generates airflow, a grill assembly arranged above the fan and forms an upper exterior of the air purifier, and a body frame configured to support the grill assembly, wherein the grill assembly includes a first grill frame having first grills arranged at first intervals (G1), a second grill frame having second grills arranged at second intervals (G2) that are smaller than the first intervals, and an edge frame overlapping an outer edge of the second grill frame in a vertical direction and being assembled onto an outer surface of the first grill frame, and wherein the grill assembly has a first rotation assembly structure configured to rotationally assemble the edge frame onto the first grill frame such that the edge frame is fixed in the vertical direction with respect to the first grill frame and rotational movement is restricted with respect to the first grill frame.