Air filter essentially for use in woodworking workplace
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Solution Overview
Problem
Existing air filtration systems for woodworking workplaces lack compactness, durability, and ease of production, as they require complex mounting of a driving motor, vanes, and filter gauze within a casing, necessitating considerations for spatial relationships and structural simplicity.
Innovation Solution
A compact air filter design where a motor, whizzer blades, and filter gauze are coupled together within a casing, featuring a curved panel and inner sidewalls with through holes to maximize air discharge efficiency, with the motor and whizzer blades driven to draw in and discharge air effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a driving motor, vanes and filter gauze are mounted inside a casing, then the air filter becomes compact and self-contained, but the structural complexity and difficulty of mounting increases
Solution Approach 1:
The patent combines the driving motor, vanes (whizzer blades), and filter gauze into a single integrated assembly that is mounted together as one unit inside the casing. This merging approach achieves compactness while reducing overall mounting complexity compared to installing each component separately with individual mounting structures.
Solution Approach 2:
The casing serves multiple functions: it houses the motor, supports the filter gauze, provides the inlet and outlet structures, and contains the vanes. This multi-functionality reduces the need for separate structural components, achieving compactness without proportionally increasing complexity.
2Reliability
If a driving motor, vanes and filter gauze are mounted inside a casing, then the air filter becomes self-contained and durable, but the ease of production decreases
Solution Approach 1:
By combining the motor, vanes, and filter gauze into a single mounted assembly, the patent creates a self-contained unit that is more durable and easier to produce as a complete package, reducing the need for complex field assembly and improving overall manufacturability.
3Productivity
If the curved panel and whizzer blades are arranged to maximize air discharge, then air filtration efficiency increases, but the spatial arrangement complexity increases
Solution Approach 1:
The patent employs a curved panel (whizzer blade) with a specific curvature radius that corresponds to the outer edges of the vanes. This curved geometry optimizes air flow patterns and maximizes air discharge efficiency while maintaining a relatively simple spatial arrangement that does not require complex multi-component assemblies.
Solution Approach 2:
The patent optimizes the curvature radius of the panel and the spacing distance between the panel and whizzer blades as key parameters. By carefully selecting these dimensional parameters, the system achieves maximum air discharge efficiency without requiring complex spatial arrangements or additional components.
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
The solution results in a compact, structurally simple, and efficient air filtration system that is easy to produce, optimizing air discharge and filtration performance compared to conventional systems.
Implementation Method 1
The whizzer blades axially face the through holes of the two inner sidewalls and are driven by the motor to rotate and draw in air via the through holes of the two inner sidewalls and discharge air via the outlet
Implementation Method 2
a filter gauze disposed at the casing and covering the inlet
Data Source
AI summary
An air filter essentially for use in woodworking workplaces includes a casing having a top panel, a bottom panel, two sidewalls, a filter gauze, a motor, and whizzer blades. The casing has an inlet anteriorly and an outlet. The casing has therein an inner blocking wall which extends rearward to form two inner sidewalls. The two inner sidewalls are each penetrated by a through hole. The two through holes face each other. The casing further has a curved panel bending in its thickness direction. The curved panel and the two inner sidewalls together define a receiving space. The curved panel curves to an extent corresponding in curvature to part of the outer edges of the whizzer blades and is spaced apart from the whizzer blades by a predetermined distance.