Handheld Vacuum Air Outlet Layout for Motor Cooling and Clean Discharge
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing handheld vacuum cleaners face issues with heat dissipation, leading to increased motor temperature and reduced service life, as well as inefficient dust filtration and user experience due to direct air flow discharge, which can blow air towards the user and cause dust spillage during filter cleaning.
Innovation Solution
The design incorporates a dust-air separating unit with a forward-discharging air outlet port to dissipate heat, a cyclone separator integrated with the dust collecting cup for easier filter cleaning, and a power source heat dissipation system using an air inlet duct to manage temperature and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the air outlet port is provided on the air outlet side of the air flow generating unit, then the structure is simple, but the heat dissipated by the air flow generating unit accumulates in the shell causing temperature to rise
Solution Approach 1:
The air outlet port is repositioned from the traditional air outlet side to the air inlet side region, specifically at the front end of the air flow generating unit. This spatial reconfiguration allows the discharged air flow to pass through the air inlet duct and exit from a different location, creating a heat dissipation pathway that does not compromise structural simplicity while effectively reducing motor temperature accumulation
2Productivity
If the air flow is discharged directly from the air outlet port after passing through the air flow generating unit, then the discharge efficiency is high, but the heat dissipated by the air flow generating unit cannot be discharged immediately
Solution Approach 1:
The air flow path is segmented into distinct functional zones: the air inlet duct separates the suction path from the discharge path, allowing the air flow to be divided into a main discharge stream and a heat carrying stream. This segmentation enables the discharged air to efficiently exit while simultaneously carrying heat away from the motor, achieving both high discharge efficiency and effective heat dissipation
3Ease of manufacture
If the entire filter device is pulled upwards to remove it from the dust cup, then the filter device can be cleaned, but the operation is complicated and the filter device shakes causing dust to spill
Solution Approach 1:
The filter device is segmented from the dust cup assembly, allowing it to be independently removed through a dedicated removal structure. This segmentation enables the filter to be taken out for cleaning without requiring the entire dust cup to be disassembled or manipulated, simplifying the cleaning operation and preventing dust spillage from unstable handling
Solution Approach 2:
A removal structure acts as an intermediary mechanism between the filter device and the dust cup. This intermediary provides a controlled interface for filter removal, enabling easy extraction and reinstallation while maintaining system stability and preventing dust contamination during the cleaning process
4Productivity
If a battery with relatively high power is used, then the cleaning efficiency is improved, but the battery generates excessive heat causing safety risks
Solution Approach 1:
The air inlet duct serves as a thermal intermediary, allowing the discharged air flow to pass over or near the battery pack. This intermediary arrangement enables heat transfer from the high-power battery to the moving air stream, which carries the heat away from the battery, thereby managing thermal accumulation and reducing safety risks while maintaining high cleaning efficiency
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 design effectively reduces motor temperature, prolongs service life, improves user experience by avoiding direct air flow towards the user, enhances dust filtration efficiency, and simplifies filter cleaning and maintenance.
Implementation Method 1
The air flow generating unit sucks air, and the air carrying dust enters the dust collecting barrel through the suction nozzle
Implementation Method 2
a cyclone separator integrated with the dust collecting cup for easier filter cleaning
Implementation Method 3
the air carrying dust enters the dust collecting barrel through the suction nozzle and is then filtered through the filter device, so most of the dust is left in the dust collecting barrel
Implementation Method 4
the air flow discharged by the motor flows forward to exceed the air inlet side and is then discharged to the outside
Data Source
AI summary
A handheld vacuum cleaner is provided, comprising: a dust-air separating unit, an airflow generating unit, a battery pack assembly, and a handle; the dust-air separating unit is provided with a dust suction port that defines a longitudinal axis extending along a front-rear direction; the airflow generating unit is provided with an air inlet side and an air outlet side, and the air inlet side communicates with the dust-air separating unit; an outer wall of the handheld vacuum cleaner is provided with an air outlet penetrating therethrough, the air outlet port and the air outlet side are connected by an air outlet channel, and the air outlet port is arranged at least partially exceeding forward beyond the airflow generating unit in the dust-air suction direction located along the longitudinal axis. When using the vacuum cleaner, the service life of the motor is lengthened and the user experience is better.