Vacuum cleaner
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Solution Overview
Problem
Existing vacuum cleaners with cyclonic separators face issues with trapped debris between the central shroud and bin, leading to inconvenient emptying and potential clogging, as users struggle to remove bulky items like carpet fibers or hair, and incomplete emptying can cause air and debris to be drawn into the motor, risking clogging and damage.
Innovation Solution
A vacuum cleaner design featuring a cyclonic separator with a movable screen and actuator system that automatically releases the end wall for easy dirt removal, preventing accidental operation when the cyclonic separator is in a position that may trap debris, ensuring complete emptying and preventing air and debris from entering the motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bin base is opened to remove debris, then dirt can be emptied from the cyclonic separator, but trapped bulky debris between the central shroud and bin cannot be removed and may cause clogging or motor damage
Solution Approach 1:
The cyclonic separator is made movable relative to the screen, transitioning between a first position (during operation) and a second position (for emptying). This dynamic positioning allows the separator to be moved away from the screen to access and remove trapped bulky debris that cannot be removed through the bin base alone, thereby preventing clogging and motor damage while maintaining ease of operation.
2Ease of operation
If the cyclonic separator is moved to the second position away from the screen, then trapped debris can be accessed for removal, but the catch may be accidentally released causing unintended opening
Solution Approach 1:
The locking mechanism is designed to automatically engage when the cyclonic separator is moved to the second position, securing the catch before the user attempts to open the bin base. This preliminary locking action prevents accidental release of the catch during the debris removal process, eliminating the harmful effect of unintended opening and debris ejection while still allowing access to trapped debris.
3Object-affected harmful factors
If a locking mechanism is added to prevent accidental catch release, then safety is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is merged with the existing actuator and catch system, using the same mechanical components and motion paths. The lock integrates with the catch structure and is actuated by the same user input that operates the bin base opening, combining multiple functions into a unified system. This approach provides safety against accidental operation while minimizing the increase in device complexity by reusing existing structural elements.
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 design facilitates easy and complete dirt removal, reduces the risk of clogging and motor damage, and prevents accidental operation by ensuring the cyclonic separator is in a safe position for emptying, enhancing user safety and maintenance efficiency.
Implementation Method 1
a cyclonic separator having a separator axis and an end wall which is openable for the removal of dirt from the cyclonic separator
Implementation Method 2
cyclonic separator comprising a cyclonic separator having a separator axis
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A vacuum cleaner (2) comprising a cyclonic separating unit comprising a cyclonic separator (18) having a separator axis X and an end wall (32) which is openable for the removal of dirt from the cyclonic separator (22), a screen (40) disposed within the cyclonic separator (22) such that it extends in the longitudinal direction of the cyclonic separator (22). The cyclonic separator (22) is movable relative to the screen (40) between a first position and a second position in the longitudinal direction of the cyclonic separator (22). A catch (36) arranged to secure the openable end wall (32) in a closed position and the vacuum cleaner further comprises an actuator which is actuated to release the catch (36) when the cyclonic separator (22) is moved into the second position. In an alternative embodiment, there is provided a vacuum cleaner apparatus in which the actuator is enabled for subsequent release of the catch when the cyclonic separator is moved into the second position.