Dust collection box and robot vacuum cleaner
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Solution Overview
Problem
Users often forget to assemble the filter in the dust collection box of robot vacuum cleaners, leading to unfiltered air being sucked into the electric motor, causing secondary pollution and potentially affecting the motor's service life.
Innovation Solution
A filter missing-alert device is integrated into the dust collection box, which includes a movable member that interferes with the box body when the filter is not mounted, preventing the lid from closing, thus ensuring the filter is always assembled before use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the filter is mounted in a movable manner to allow easy replacement, then the ease of operation is improved, but the reliability deteriorates because users often forget to assemble the filter
Solution Approach 1:
The patent applies preliminary anti-action by designing a movable member that proactively prevents the lid from closing when the filter is missing. This counter-measure is built into the structure before use, automatically blocking the closing action when no filter is present, thus preventing the reliability issue before it occurs.
Solution Approach 2:
The system performs self-service through the movable member that automatically detects whether the filter is installed and self-adjusts to either allow or block lid closure. The mechanism serves itself by using the presence or absence of the filter to control its own operation, eliminating the need for external monitoring or user intervention.
2Reliability
If the movable member is designed to interfere with the box body when filter is missing, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the critical detection function from the complex assembly and isolates it into a dedicated movable member. This separate component specifically handles the filter presence detection and lid blocking function, simplifying the overall system by giving a single element a focused role rather than distributing the complexity across multiple components.
Solution Approach 2:
The movable member serves multiple functions: it acts as a mechanical block to prevent lid closure when the filter is missing, and simultaneously serves as an alert indicator to notify users of the missing filter. This multi-functionality reduces the need for separate components, thereby lowering overall device complexity while maintaining reliability.
Data Source
AI summary
A dust collection box and a robot vacuum cleaner are disclosed. The dust collection box includes a box body, a first lid detachably arranged to the box body, a filter, and a filter missing-alert device arranged to the first lid. The filter missing-alert device includes a movable member. When the filter is not mounted into the box body and the first lid is arranged to be closed on to the box body, the movable member interferes with the box body, such that the box body cannot be closed with the first lid. When the filter is mounted into the box body and the first lid is arranged to the box body, the filter missing-alert device interferes with the filter to eliminate the interference between the movable member and the box body, such that the box body can be closed with the first lid.