Vacuum Cleaner Dust Compression for Scatter-Free Disposal
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Solution Overview
Problem
Existing vacuum cleaners face issues with dust and foreign matter accumulation in the dust collection device, which can lead to scattering during disposal due to the device's lightweight nature.
Innovation Solution
Incorporation of a dust compression device that utilizes pressure differences between the vacuum motor, dust compression device, and external air to compress collected dust, along with a passage switching device to selectively communicate with the vacuum motor or external air, allowing for efficient compression and storage of foreign matters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If dust is collected in a lightweight dust collection device, then the device is easy to handle and detach, but the dust may scatter during disposal due to the lightweight structure
Solution Approach 1:
The dust compression device performs preliminary compression of dust before disposal. The piston moves to compress the dust into a compact form, preventing scattering when the dust collection device is detached and disposed of, while maintaining the lightweight structure of the dust collection device itself
2Reliability
If a dust compression device is added to compress dust, then dust scattering is prevented, but the device complexity increases
Solution Approach 1:
The dust compression device is integrated with the existing dust collection device. The piston, compression chamber, and associated mechanisms are combined within the same structural framework, sharing common components such as the cylindrical chamber and sealing mechanisms, thereby reducing overall complexity despite adding compression functionality
Solution Approach 2:
The system uses the vacuum motor's own pressure differences to drive the compression process. The passage switching device directs either vacuum pressure or atmospheric pressure to the piston, utilizing the existing motor's capabilities rather than requiring a separate compression motor or external power source
3Productivity
If pressure differences are used to compress dust, then compression efficiency is improved, but the need for passage switching mechanisms increases complexity
Solution Approach 1:
The vacuum motor serves dual purposes: both generating suction for dust collection and providing the pressure differential needed for dust compression. By switching between vacuum pressure and atmospheric pressure on the piston, the system achieves compression without requiring an additional compression motor or complex external control systems
Solution Approach 2:
The passage switching device acts as an intermediary mechanism that directs pressure sources to the piston. This relatively simple switching structure enables efficient compression by controlling which pressure source (vacuum motor or atmosphere) connects to the compression chamber, without requiring complex multi-component control systems
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 solution effectively compresses and stores foreign matters within the dust collection device, preventing scattering during disposal and enhancing user convenience by leveraging pressure differences for efficient dust management.
Implementation Method 1
compress the dust collected in the dust collection device by using a difference between a pressure inside a vacuum motor and a pressure inside the dust compression device and a difference between a pressure of external air and a pressure inside the dust compression device
Implementation Method 2
the vacuum motor may be driven and the suction force may be generated. The suction force enables the suction nozzle to suck therein the air containing dust and foreign matters
Implementation Method 3
The dust and foreign matters contained in the air sucked into the body may be separated within a dust separation device provided in the body by cyclone theory
Data Source
AI summary
A vacuum cleaner is disclosed. The vacuum cleaner includes a body having a vacuum motor provided therein; a dust collection device provided in the body to collect dust; a dust compression device expandable or contractible selectively; a passage switching device configured to selectively communicate the dust compression device with a low pressure part having a lower pressure than a pressure of the dust collection device and a high pressure part having a higher pressure than a pressure of the dust collection device.