Handheld vacuum cleaner
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Solution Overview
Problem
Conventional handheld vacuum cleaners often require separate batteries for upright and handheld modes, leading to increased weight and cost, as well as complexity in battery management and accessibility for maintenance tasks like filter replacement.
Innovation Solution
A vacuum cleaner design that allows a single battery to be interchangeable between upright and handheld modes, with a battery mount configuration that covers the filter access door when in use, enabling easy filter removal and reducing overall weight and cost by eliminating the need for multiple batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate batteries are used for upright and handheld modes, then power supply reliability is improved, but device weight and cost increase
Solution Approach 1:
A single battery is designed to serve dual purposes: powering the vacuum cleaner in both upright and handheld modes. The battery mount is configured to securely hold the battery in the handheld position while allowing it to function as the power source for the entire system, eliminating the need for separate batteries and reducing overall weight.
2Reliability
If separate batteries are used for upright and handheld modes, then power supply reliability is improved, but device cost increases
Solution Approach 1:
The battery system is designed as a universal power source that can be shared between upright and handheld operations. By using one battery instead of two, the bill of materials is reduced, manufacturing complexity is lowered, and overall device cost is decreased while maintaining adequate power supply for both modes.
3Ease of operation
If battery mount covers filter access door, then maintenance accessibility is improved, but device complexity increases
Solution Approach 1:
The battery mount is positioned and configured to automatically cover the filter access door during normal operation. This preliminary positioning ensures that the filter compartment remains sealed and protected while the battery is installed, preventing accidental access or contamination. The mounting structure itself serves the dual purpose of holding the battery and sealing the filter area.
Data Source
AI summary
A handheld vacuum cleaner includes a housing, motor, filter access door, filter, and dirt cup movably coupled to the housing. The housing defines a top, bottom, motor chamber, dirty air inlet, handle, clean air outlet, and air flow path. The air flow path is routed from the dirty air inlet to the clean air outlet. The motor is disposed in the motor chamber and defines a motor axis. The filter access defines a filter chamber with the housing. The filter is disposed in the filter chamber and defines a filter axis. The dirt cup defines a dirt cup axis extending parallel to the motor axis and filter axis. The filter access door is located below the filter axis. When the filter axis door is removed, the filter is removable in a downward direction from the filter chamber.