Cleaner
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Solution Overview
Problem
Existing handheld vacuum cleaners have complex structures that make it difficult for users to access and clean the pre-motor filters, leading to reduced suction ability due to dust accumulation, and require disassembly for filter maintenance.
Innovation Solution
A cleaner design with a detachable filter unit that can be easily combined and sealed with the main body, featuring a ring-shaped filter and filter frame with air inlets and exits, allowing for improved airflow and simplified filter maintenance without disassembling the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pre motor filter is disposed between the airflow generator and the cyclone and surrounded by a housing, then the filter is protected, but it requires disassembly of the product to access the filters for cleaning
Solution Approach 1:
The filter assembly is segmented into a detachable filter unit that includes the pre-motor filter, post-motor filter, and filter frame as an integrated removable module. This allows the filter unit to be easily detached from the main body for cleaning without disassembling the entire product, while still providing protection when attached.
Solution Approach 2:
The filters are extracted from the internal housing structure and placed in a separate detachable filter unit that can be removed from the main body. This extraction allows users to access and clean the filters by simply detaching the filter unit rather than disassembling the product.
2Reliability
If separate structures are provided for guiding air from the cyclone to the motor and from the motor to the post motor filter, then air flow paths are defined, but the number of parts increases and the structure becomes complicated
Solution Approach 1:
The air guiding structures are merged into the filter frame itself, which integrates the airflow path definitions with the filter support structure. The filter frame includes built-in air inlets and air exits that guide air flow through the filters without requiring separate air guiding components.
Solution Approach 2:
The filter frame serves multiple functions simultaneously: it supports the pre-motor and post-motor filters, defines the air flow paths through integrated air inlets and exits, and provides a detachable interface with the main body. This multi-functionality reduces the overall number of parts while maintaining reliable air flow guidance.
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 enhances airflow efficiency by minimizing airflow loss and simplifies filter maintenance, maintaining suction power and extending the battery life while preventing dust from accumulating in filters.
Implementation Method 1
a filter unit that is detachably coupled to the main body to filter air discharged from the suction motor and includes a ring-shaped filter
Data Source
AI summary
A cleaner includes: a main body that receives a suction motor; and a filter unit that is detachably coupled to the main body to filter air discharged from the suction motor and includes a ring-shaped filter and a filter frame that receives the ring-shaped filter, wherein the filter frame includes: an inner frame; an outer frame that defines a filter space for receiving the filter in cooperation with the inner frame; and a ring-shaped filter cover that connects the outer frame and the inner frame to each other and has one or more air openings.