Video Projector Filter Unit with Removable Dust Box
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Solution Overview
Problem
Existing air filter devices for video projectors face challenges in maintaining cleanliness due to the scattering of dust collected in the filter unit and the difficulty in removing the elongated brush for dust disposal, making maintenance cumbersome.
Innovation Solution
A filter unit with a self-propelled cleaning unit featuring a rotation brush and a dust box that is removable and designed to collect dust without scattering, allowing for easy maintenance and dust disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an elongated brush is used to remove dust from the pre-filter, then dust can be collected in the filter unit, but the dust may be scattered again as the filter unit moves and the brush is difficult to remove for dust disposal
Solution Approach 1:
The filter unit is divided into separate functional modules: a removable dust collection container that can be detached from the main body, and a fixed brush assembly. This segmentation allows the dust container to be easily removed for disposal without removing the brush, solving the problem of difficult dust disposal while preventing dust scattering during normal operation.
Solution Approach 2:
The dust collection container is extracted as a separate removable component from the filter unit. This extraction enables independent removal of the dust container for disposal purposes, while the brush remains fixed in the main body to continue its dust-collecting function, thereby simplifying maintenance operations.
2Ease of repair
If the filter unit is made removable from the video projector, then maintenance becomes easier, but the device complexity increases
Solution Approach 1:
The filter system is segmented into three independently removable components: the entire filter unit can be removed from the projector, and the dust collection container can be further separated from the brush assembly. This multi-level segmentation provides flexible maintenance options while keeping each component relatively simple in structure.
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 enables efficient automatic cleaning of air filters, reduces the frequency of manual filter replacement, and simplifies maintenance by preventing dust scattering and facilitating the removal and cleaning of the dust box and rotation brush.
Implementation Method 1
a rotation brush that removes dust from the air filter
Implementation Method 2
a dust box, a longitudinal direction of which is parallel to the rotation axis of the rotation brush
Data Source
AI summary
A filter unit includes an air filter, which captures dust from intake air, and a cleaning unit, which automatically cleans the air filter. The cleaning unit includes a rotation brush, which removes dust from the air filter, and a dust box, which extends parallel to the rotation brush. The dust box includes a dust inlet that opens toward the rotation brush and receives dust from the rotation brush. The dust box is removable from the filter unit.