Dryer Filter Interlock Cover for Forgotten Mesh Prevention
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Solution Overview
Problem
Clothes dryers often malfunction due to forgotten filtering meshes, which allow debris and flocks to enter the machine, reducing efficiency and causing malfunctions.
Innovation Solution
A laundry treatment device with a position limiter that switches between two positions, preventing the cover from closing when the filter assembly is not mounted, reminding users to reinstall it and preventing debris entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the filter assembly is made detachable for cleaning, then the ease of operation is improved, but the reliability deteriorates due to users forgetting to reinstall it
Solution Approach 1:
The position limiter provides visual feedback by protruding when the filter assembly is missing, immediately informing the user that the filter is not properly installed. This feedback mechanism prevents the reliability issue of forgotten filter reinstallation while preserving the ease of cleaning through detachable design.
Solution Approach 2:
The position limiter acts as an intermediary between the filter assembly installation state and the user. It translates the physical state of filter installation into a visible signal (protrusion or retraction), enabling users to understand the system state without directly inspecting the filter assembly.
2Reliability
If the position limiter prevents cover closing, then the reliability is improved by preventing debris entry, but the device complexity increases
Solution Approach 1:
The position limiter automatically performs its function of preventing cover closing when the filter assembly is missing, without requiring additional control mechanisms or user intervention. The mechanical design itself provides the protective function, reducing the need for complex control systems.
Solution Approach 2:
The position limiter is extracted as a separate, simple mechanical component from the main cover closing mechanism. This allows it to function independently with minimal complexity, providing reliable debris prevention through a dedicated but simple element.
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 device effectively prevents malfunctions by reminding users to reinstall the filter assembly, enhancing the security and practicality of the laundry treatment device.
Implementation Method 1
a reset member configured to constantly apply a pushing force on the position limiter in a direction towards the first position
Data Source
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AI summary
A laundry treatment device (100) is provided, and includes a cabinet, an inner drum (120), a cover, a position limiter (140), a reset member (150) and a filter assembly (160). The inner drum (120) is disposed in the cabinet and has an air outlet (121) and an opening (122). The cover is disposed to the cabinet and configured to open or close the opening (122). The position limiter (140) is switchable between a first position and a second position. When located at the first position, the position limiter (140) stops the cover from closing the opening (122), and when the position limiter is located at the second position, the cover closes the opening. When the filter assembly (160) is removed from the air outlet, the position limiter is located at the first position, and when mounted at the air outlet (121), the filter assembly pushes the position limiter to switch the position limiter to the second position.