Cleaner
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Solution Overview
Problem
Handheld vacuum cleaners have a center of gravity imbalance due to heavy components, leading to user discomfort and potential wrist injury, along with airflow inefficiencies from poorly positioned parts.
Innovation Solution
A cleaner design with a main body comprising a first and second body, where the suction motor is positioned over the dust separation unit and the battery behind the handle, distributing weight evenly and minimizing airflow loss by reducing the air path length and direction changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the airflow generator and power supply are disposed right over and under the handle, then the center of gravity concentrates on the handle, but this causes user discomfort and potential wrist injury
Solution Approach 1:
The airflow generator is repositioned from a vertical arrangement (directly over the handle) to a horizontal/longitudinal arrangement (in front of the cyclone separator). This spatial reconfiguration redistributes weight along the length of the device rather than concentrating it at the handle, reducing the torque on the user's wrist and improving ergonomics
2Loss of energy
If the airflow generator is disposed behind the cyclone, then the assembly is compact, but the air channel becomes necessarily long and causes large flow loss
Solution Approach 1:
The airflow generator is positioned upstream (in front of the cyclone) rather than downstream (behind it), so that air generation occurs before the separation process. This preliminary positioning creates a direct, short airflow path from generation to separation, eliminating the need for long return channels and multiple direction changes, thereby reducing energy loss
3Object-affected harmful factors
If the airflow generator is disposed right over the handle, then the structure is simplified, but the discharged air directly touches the user's hand
Solution Approach 1:
The airflow generator is extracted from its position directly over the handle and relocated to the front of the cyclone separator. This separation removes the source of discharged air from proximity to the user's hand, eliminating the harmful effect of hot or high-velocity air contact while preserving the functional integration of the device
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 enhances user convenience by distributing weight, reducing airflow loss, and increasing suction force while preventing wrist injuries and improving the aesthetic appearance by exposing a sealing member for better sealing and appearance.
Implementation Method 1
a cyclone that separates dust from air
Implementation Method 2
a cyclone that separates dust from air
Data Source
AI summary
A cleaner includes: a suction unit; a main body that is connected with the suction unit and separates dust from air sucked through the suction unit; and a handle unit that is connected to the main body, wherein the main body includes: a first body and a second body; a sealing member for sealing a boundary between the first body and the second body; and a support body that supports the sealing member and has an opening that communicates with the suction unit.