Cleaner Flow Path Layout to Reduce Radial Size and Noise
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Solution Overview
Problem
The increase in size of cleaners makes them difficult to handle for users.
Innovation Solution
The cleaner design includes first flow paths provided between the motor assembly and the main body housing in a radial direction, extending in a circumferential and front-rear direction, which suppresses the increase in size, particularly in the radial direction, and incorporates sound absorbing members and elastic members to reduce noise and vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the cleaner size is increased to accommodate motor assembly and flow paths, then the suction performance is improved, but the cleaner becomes difficult to handle for users
Solution Approach 1:
The flow paths extend in the front-rear direction (parallel to rotation axis) rather than only radially, utilizing the longitudinal dimension of the cleaner to accommodate the flow paths. This dimensional transition allows sufficient flow path length for motor cooling without increasing the radial size that would affect handling ease
2Temperature
If flow paths are provided in the radial direction throughout the entire circumference, then the motor cooling is improved, but the cleaner size increases
Solution Approach 1:
Flow paths are provided only in specific circumferential regions (first and second regions) rather than uniformly throughout the entire circumference. This localized approach provides sufficient cooling for the motor while minimizing the volume occupied by flow paths, thereby preventing excessive cleaner size increase
3Ease of operation
If the cleaner size is reduced for better handling, then the motor assembly space is limited, but the suction performance decreases
Solution Approach 1:
The flow paths utilize the front-rear dimension (parallel to rotation axis) to achieve sufficient length for motor cooling and air flow, allowing the radial dimensions to be kept compact for good handling ease while maintaining suction performance
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 effectively reduces the cleaner's size while minimizing noise generation and improving handling, ensuring efficient operation and user convenience.
Implementation Method 1
a fan motor that rotates about a rotation axis to generate a suction force at the suction port
Implementation Method 2
incorporates sound absorbing members and elastic members to reduce noise and vibration transmission
Data Source
AI summary
A cleaner includes: a main body housing having a suction port; a motor assembly that is housed in the main body housing and includes a fan motor that rotates about a rotation axis to generate a suction force at the suction port; and one or more first flow paths through which air discharged from the motor assembly flows. The one or more first flow paths are provided between the motor assembly and the main body housing in a radial direction of the rotation axis only in a part in a circumferential direction of the rotation axis and extend in a front-rear direction parallel to the rotation axis.