Suction device with filter device and filter element for a suction device
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Solution Overview
Problem
Existing vacuum cleaners face issues with clogged filters reducing suction power and posing health risks, especially when used with materials like dust and shavings, and existing filter designs are bulky and not easily cleaned or replaced.
Innovation Solution
A compact filter unit with a support frame and flat pleated filter oriented perpendicularly to the travel surface, allowing easy cleaning and replacement, and a vibration mechanism using a magnet and electromagnet for efficient debris removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional filter device is used in vacuum cleaners, then the filter can be installed between the suction unit and dirt collection chamber, but the filter becomes clogged during operation reducing suction power and requiring complex cleaning mechanisms
Solution Approach 1:
The patent applies mechanical vibration through a vibration motor that directly contacts the support frame of the filter element. The vibrations cause the flat pleated filter to oscillate, preventing dust and debris from accumulating and clogging the filter surface, thereby maintaining suction power and eliminating the need for complex manual cleaning mechanisms
2Ease of operation
If existing filter designs are used, then filtration is provided, but the filter units are bulky and difficult to clean or replace
Solution Approach 1:
The filter element is segmented into a support frame and a separate flat pleated filter. The flat pleated filter can be independently removed from the support frame for cleaning or replacement, while the support frame remains in the housing. This segmentation allows easy maintenance without replacing the entire filter unit, reducing the effective volume required for filter storage and handling
Solution Approach 2:
The filter element is oriented with open side surfaces arranged transversely, particularly perpendicularly, to the travel or contact surface of the suction device. This dimensional reorientation allows the flat pleated filter to project perpendicularly from the support frame, enabling access for cleaning and replacement while maintaining a compact footprint within the vacuum cleaner housing
3Ease of operation
If the filter element is oriented with open side surfaces perpendicular to the travel surface, then easy cleaning and replacement is enabled, but the structural configuration must accommodate this orientation
Solution Approach 1:
The support frame is designed with multiple functions: it provides structural support for the flat pleated filter, serves as a vibration transmission element from the vibration motor, and enables easy filter replacement through its specific configuration with open side surfaces. The integration of these functions into a single component reduces overall device complexity despite the specialized orientation requirements
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 maintains suction power by efficiently removing debris from the filter, ensuring operator safety and reducing maintenance complexity.
Implementation Method 1
The filter device includes a vibrator that is in contact with the support frame to vibrate the support frame and the flat pleated filter in order to remove dirt and dust from the flat pleated filter
Implementation Method 2
A metal plate is injected into the upper side of the support frame, allowing a force from a magnet located above the metal plate to be applied to the filter elements for vibration
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a suction device (1) comprising a housing (2) with a dirt collection chamber (210), a suction unit (24) and a filter device (3) with a filter element (4), wherein the filter element (4) is arranged in a flow connection between the suction unit (24) and the dirt collection chamber (210), wherein the filter element (4) comprises a support frame (40) and a flat pleated filter (41) with flat pleats (410) arranged in the support frame (40), wherein the filter element (4) is oriented such that open side surfaces (401, 402) of the support frame (4) are arranged transversely, in particular perpendicularly to a travel or contact surface (10) of the suction device (1), and wherein the flat pleated filter (41) is inserted into the support frame (40) so that the flat pleats (410) project perpendicularly from a first open side surface (401) of the support frame (40). The invention further relates to a filter element (4) for a suction device (1).