Steam Cleaner Vortex Duct for Convergent Motor Cooling
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Solution Overview
Problem
Steam cleaners in the related art suffer from poor heat dissipation due to inadequate airflow performance, which affects the safety and service life of the electric motor and the overall safety performance of the device.
Innovation Solution
A steam cleaner design featuring a vortex air duct between the casing and base, which guides air for heat dissipation to a heat dissipation fan wheel, enhancing airflow velocity and promoting effective heat dissipation, while also incorporating a partition plate assembly with notches to improve airflow convergence and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a conventional air duct arrangement is used, then the structure is simple, but the airflow performance is poor and heat dissipation is insufficient
Solution Approach 1:
The patent employs a vortex air duct with curved, spiral geometry instead of straight or angular ducts. This curved configuration generates rotational airflow (vortex) that enhances heat dissipation efficiency by improving air circulation around the electric motor, while the compact spiral design maintains structural simplicity.
2Temperature
If airflow velocity is increased to improve heat dissipation, then heat dissipation performance improves, but noise increases
Solution Approach 1:
The vortex air duct's curved spiral structure generates controlled rotational airflow that achieves high heat dissipation efficiency through enhanced circulation patterns. The vortex flow distributes air more uniformly around the motor, reducing turbulent noise compared to high-velocity straight airflow, while maintaining effective cooling.
3Productivity
If the air duct is designed to guide airflow precisely to the fan wheel, then heat dissipation efficiency improves, but the device complexity increases
Solution Approach 1:
The vortex air duct serves multiple functions simultaneously: it guides airflow to the fan wheel, generates rotational flow patterns for enhanced heat dissipation, reduces noise through controlled vortex flow, and provides structural support. This multi-functionality achieves high heat dissipation efficiency without proportionally increasing device complexity.
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 steam cleaner achieves improved heat dissipation and safety performance by ensuring efficient airflow to the heat dissipation fan wheel, reducing noise, and extending the service life of the electric motor.
Implementation Method 1
a vortex air duct is defined between a bottom wall of the casing and the base, and the air inlet is in fluid communication with the vortex air duct; the vortex air duct is configured to guide air entering from the air inlet to the heat dissipation fan wheel
Implementation Method 2
the vortex air duct has functions of gathering air flows and providing a velocity circulation before the air flows to the fan, and thus the air may present a convergent flow in the vortex air duct, such that it is convenient for the air to enter the heat dissipation fan wheel, and the air for heat dissipation conforms to a flow rule well, thereby promoting the flow of the air
Implementation Method 3
a fan disposed within the casing, and including an electric motor and a heat dissipation fan wheel connected to a lower end of an electric motor shaft of the electric motor, in which the vortex air duct is configured to guide air entering from the air inlet to the heat dissipation fan wheel so as to dissipate heat of the electric motor
Data Source
AI summary
A steam cleaner is provided, including: a base (2) provided with an air inlet (4); a casing (1) disposed on the base (2) and having an air outlet (11) in a side wall thereof, in which a vortex air duct is defined between a bottom wall (16) of the casing and the base (2), and the air inlet (4) is in fluid communication with the vortex air duct; a fan (7) disposed within the casing (1), and including an electric motor (71) and a heat dissipation fan wheel (72) connected to a lower end of an electric motor shaft of the electric motor, in which the vortex air duct is configured to guide air entering from the air inlet (4) to the heat dissipation fan wheel so as to dissipate heat of the electric motor.