Electrically operated mobile vacuum cleaner
Solution Overview
Problem
Existing battery-operated vacuum cleaners have design and handling issues due to externally attached battery packs, which are perceived as foreign bodies and increase the size of the vacuum cleaner, making them less aesthetically pleasing and more cumbersome to use.
Innovation Solution
The integration of a battery pack into the vacuum cleaner housing with automatic electrical contact elements that are protected from dust and humidity, allowing for a sleeker design and easier handling, with the option to use either a battery pack or an adapter element for power, depending on the operational needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the battery pack is externally attached to the vacuum cleaner housing, then the battery pack is easily replaceable and accessible, but the battery pack is perceived as a foreign body and increases the size of the vacuum cleaner housing
Solution Approach 1:
The battery pack is merged with the vacuum cleaner housing by integrating it into a recess, making it appear as an integral part rather than a foreign body. The housing is designed with a recess that receives the battery pack, and the end face of the battery pack continuously transitions into the housing, creating a unified appearance.
Solution Approach 2:
The battery pack is nested within the vacuum cleaner housing by placing it into a recess. This allows the battery pack to be housed within the overall structure of the vacuum cleaner, reducing the external dimensions and improving aesthetic integration while maintaining easy accessibility.
2Ease of operation
If the battery pack is externally attached to the vacuum cleaner housing, then the battery pack is easily accessible, but the electrical contact elements are exposed to dust and humidity
Solution Approach 1:
The electrical contact elements are nested within the recess of the housing, protecting them from dust and humidity. The recess acts as a protective enclosure that shields the contact elements while still allowing the battery pack to be easily inserted and removed.
Solution Approach 2:
The recess structure, which might seem to limit accessibility, actually benefits the system by protecting the electrical contact elements from harmful environmental factors like dust and humidity, while still maintaining easy battery pack replacement.
3Ease of operation
If the battery pack is externally attached to the vacuum cleaner housing, then the battery pack can be easily removed, but the contact elements are susceptible to mechanical damage
Solution Approach 1:
The contact elements are nested within the recess, which provides mechanical protection during battery pack removal and insertion. The recess structure absorbs and distributes mechanical stresses, protecting the fragile contact elements from damage while maintaining easy battery pack removability.
Solution Approach 2:
The recess structure acts as a cushioning element that protects the contact elements from mechanical damage during battery pack handling. The housing material and recess geometry are designed to absorb impacts and stresses before they reach the contact elements.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The invention refers to an electrically operated mobile vacuum cleaner (2) for separating dust and particles from a suction flow (35), comprising - an electric motor (38) and a turbine (40) for generating the suction flow (35), - a vacuum cleaner housing (4, 6; 32) with a collection chamber (8) for collecting dust and particles separated from the suction flow (35), - a battery cell (116) for providing the electric motor (38) with electric energy for its operation, - wheels (20) assigned to the vacuum cleaner (2). It is suggested that - the battery cell (116) forms an integral part of an extractable battery pack (100a, 100b), - the vacuum cleaner housing (4, 6; 32) comprises a recess (62) opening towards the environment and adapted to receive the battery pack (100a, 100b) in a direction (104) parallel to a longitudinal extension (136), - the battery pack (100a, 100b) is equipped with first electrical contact elements (60; 60') electrically connected to the battery cell (116), and - the recess (62) is equipped with second electrical contact elements (64; 64') electrically connected to the electric motor (38). The contact elements (60, 64; 60, 64') are adapted to automatically enter into a mutual electric contact upon insertion of the battery pack (100a, 100b) into the recess (62) for establishing an electric connection between the battery cell (116) and the electric motor (38) and for operation of the vacuum cleaner (2) by means of electric energy from the battery cell (116).