Toilet Deodorizing Duct Integrated With Casing to Reduce Air Leakage
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Solution Overview
Problem
Existing toilet devices with deodorizing units suffer from air leakage at the joining portions of the duct components, leading to impaired deodorization performance and noise issues.
Innovation Solution
The toilet device integrates the duct with the casing, forming a single, airtight unit with a fan positioned between the intake and exhaust passages, and the duct's second passage portion is bent at an obtuse angle to reduce pressure loss, while the fan is fixed with screws to prevent displacement and enhance durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the duct is divided into multiple components for assembly, then the ease of manufacture is improved, but the airtightness deteriorates due to gaps at joining portions
Solution Approach 1:
The duct is integrated as a single piece with the casing, eliminating multiple joining portions. This merging of the duct and casing into one integral structure prevents air leakage at joints while maintaining ease of manufacture through integral forming processes.
2Device complexity
If the duct components are joined together, then the device complexity is reduced, but air leakage occurs at the joining portions
Solution Approach 1:
The duct and casing are formed as an integral structure, reducing device complexity by eliminating separate duct components and assembly steps while simultaneously improving airtightness by removing joining portions where air leakage could occur.
3Reliability
If air leakage is prevented by improving duct airtightness, then deodorization performance is improved, but manufacturing complexity increases
Solution Approach 1:
The duct is integrated with the casing as a single structure, ensuring excellent airtightness for optimal deodorization performance while simplifying manufacturing by eliminating the need for separate duct assembly operations.
4Productivity
If the fan blades are made larger to improve suction performance, then the deodorization performance is improved, but the height dimension of the casing increases
Solution Approach 1:
The fan rotary shaft is oriented in the width direction rather than the height direction, allowing larger fan blades to achieve better suction performance without increasing the casing height, thus resolving the contradiction between suction performance and compact dimensions.
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
This configuration improves deodorization performance by minimizing air leakage and noise, maintains a compact design, and reduces assembly steps, ensuring effective and quiet operation.
Implementation Method 1
a fan configured to suction air into the duct
Implementation Method 2
the duct's second passage portion is bent at an obtuse angle to reduce pressure loss
Data Source
AI summary
A toilet device includes a casing and a deodorizing unit provided inside the casing and configured to deodorize air in a toilet room. The deodorizing unit includes a duct and a fan configured to suction air into the duct. The duct includes a first extending portion extending from the casing, a second extending portion extending from the casing at a position different from a position of the first extending portion, and a connection portion connecting the first extending portion and the second extending portion. The first extending portion, the second extending portion, and the connection portion are integrally formed with the casing.