Dust Extractor Lid Design for Safe Fine Filter Replacement
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Solution Overview
Problem
Conventional dust extractors often release harmful particles during the replacement of the fine filter, very small particles, where the fine filter may come loose and get into the ambient air, thus maintaining the quality of the workplace, while facilitating the follow-up cleaning. In this way, the safety of the workplace is ensured, while the secure dust handling is provided, in particular when replacing the fine filter that may contain hazardous particles.
Innovation Solution
The dust extractor comprises a dust cyclone container and a fine filter section adapted to be mounted downstream a coarse filter part, where the dust cyclone container is adapted to receive at least one fine filter part, and the dust cyclone container is adapted to receive at least one contaminated part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the lid is removed from the dust cyclone container to access the fine filter section, then the filter can be replaced, but dust and fine particles can escape into the environment and the motor can be damaged
Solution Approach 1:
The fine filter section is nested within the dust cyclone container, with the fine filter housing positioned inside the cyclone container. This allows the filter to be accessed and replaced without removing the lid from the cyclone container, as the entire fine filter section can be removed as a unit through the bottom opening.
Solution Approach 2:
The dust extractor is divided into functionally independent sections: the dust cyclone container and the fine filter section. The fine filter section includes its own housing, filter element, and collection container, allowing it to be separated and serviced independently from the cyclone container.
2Object-affected harmful factors
If the lid remains closed on the dust cyclone container, then dust is contained, but the fine filter section cannot be accessed for replacement
Solution Approach 1:
The system transitions from a static closed design to a dynamic serviceable design. The fine filter section is designed to be removable and reconfigurable, allowing the system to switch between operational mode (lid closed, dust contained) and maintenance mode (fine filter section removed for access).
Solution Approach 2:
The fine filter section is extracted as a separate, removable unit from the dust cyclone container. This extraction allows the filter to be serviced without compromising the sealed structure of the cyclone container during normal operation.
3Reliability
If a sealed design is used to prevent dust escape, then the motor is protected, but maintenance access is blocked
Solution Approach 1:
The fine filter housing acts as an intermediary structure that provides maintenance access while preserving motor protection. During operation, the sealed design protects the motor. During maintenance, the fine filter section is removed as a unit, providing access without requiring lid removal and without exposing the motor to dust.
4Volume of stationary object
If the fine filter section is integrated inside the cyclone container, then space is saved, but serviceability is reduced
Solution Approach 1:
The fine filter section is nested within the cyclone container volume, utilizing internal space efficiently. The filter housing fits within the cyclone container's internal cavity, maintaining a compact overall device volume while enabling serviceability through removable section design.
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 provides a compact, versatile, and easily transportable dust extractor that minimizes the release of hazardous dust during filter replacement, ensuring secure dust handling and maintaining a clean work environment.
Implementation Method 1
a dust cyclone container (1) having a separation space (12) for separating dust from air flow by means of a cyclone effect
Implementation Method 2
a pre-filter section (10) having a pre-filter element (13) for the air flow coming from the suction device (2)
Implementation Method 3
a fine filter section (20) arranged inside the dust cyclone container (1) and having a fine filter element (23) for the air flow coming from the cyclone effect separation space (12)
Data Source
Figure 1
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Figure 3
AI summary
The present disclosure relates to a dust extractor (1) comprising a dust cyclone container (3) comprising a dust inlet (2) leading into the dust cyclone container (3), the dust extractor (1 ) further comprising a fine filter section (12) adapted to receive at least one fine filter part (15) downstream the dust cyclone container (3). A contaminated side of the fine filter part (15) is adapted to be fluidly connected to the dust cyclone container (3) via an air channel (47) that at least partly is comprised in a lid arrangement (13,14) and runs between a cyclone channel connecting rim (23) and a first fine filter section channel connecting rim (40), when the lid arrangement (13, 14) is positioned over the dust cyclone container (3) and the fine filter section (12). A first lid part (13) is releasably attachable to the dust cyclone container (3) and a second lid part (14) is releasably attachable to the fine filter section (12).