Filter cleaning
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Solution Overview
Problem
Existing vacuum cleaners interrupt the vacuuming process when the filter becomes clogged with dirt particles, requiring manual cleaning that is time-consuming and inconvenient.
Innovation Solution
A filter device with reversible pressure surge elements that alternate positions to clean the filters without interrupting the vacuuming process, using a control unit to regulate the cleaning intervals and air flow, allowing continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter is cleaned manually by switching off and opening the vacuum cleaner, then the filter function is restored, but the vacuuming process is interrupted and time is lost
Solution Approach 1:
The filter cleans itself automatically through a reverse air flow mechanism generated by the turbine device. The control unit activates the turbine to create negative pressure that reverses the air flow direction, blowing accumulated dirt particles off the filter surface into the collection container, eliminating manual intervention
Solution Approach 2:
The vacuuming process continues uninterrupted during filter cleaning. The system alternates between normal filtration mode and reverse flow cleaning mode, ensuring continuous operation without stopping the vacuum cleaner or removing the filter
2Reliability
If the filter is cleaned frequently to maintain function, then the filter performance is maintained, but the operational time of the vacuum cleaner is reduced
Solution Approach 1:
The control unit monitors filter status and activates the reverse air flow cleaning mechanism at periodic intervals or when specific criteria are met. This automated periodic cleaning maintains optimal filter performance while minimizing disruption to operational time
Solution Approach 2:
The filter automatically cleans itself without user intervention, restoring its filtration capability quickly and efficiently, thereby maximizing the operational time between manual maintenance intervals
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
Enables continuous vacuuming without interruptions, improving efficiency and reducing downtime for filter maintenance by using a control unit to manage the cleaning process of the filters.
Implementation Method 1
a first pressure surge element (14a) which divides the first chamber (11a) into a first (23a) and a second space (24a) and is reversibly movable between a first and a second position, the first main air flow (8a) being able to flow into the first space (23a) of the first chamber (11a) through the first filter element (22a)
Implementation Method 2
the first inlet opening (25a) being positioned in the second space (24a) of the first chamber (11a) in such a way that an atmospheric pressure acting on the second space (24a) of the first chamber (11a) through the inlet opening (25a) moves the first pressure surge element (14a) into the second position (5), whereby a pulse is transmitted from the first pressure surge element (14a) to the first filter element (22a) to instantaneously clean the first filter element (22a)
Data Source
AI summary
A filter device for a vacuum cleaner, including a turbine device, for generating at least one first and one second main air flow through at least a portion of the vacuum cleaner, and a control unit. The filter device includes a first chamber including a first filter element, a first outflow opening, a first inlet opening and a first pressure surge element, which divides the first chamber into a first and a second space and is reversibly movable between a first and a second position, the first main air flow being able to flow into the first space of the first chamber through the first filter element and to flow back out through the first outflow opening, a second chamber including a second filter element, a second outflow opening, a second inlet opening and a second pressure surge element, which divides the second chamber into a first and a second space and is reversibly movable between a first and a second position, the second main air flow being able to flow into the first space of the second chamber through the second filter element and to flow back out through the second outflow opening. The first pressure surge element and the second pressure surge element alternately are reversibly movable to alternately clean the first and second filters.