Portable vacuum cleaner provided with a main casing comprising first and second separate casing portions
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Solution Overview
Problem
The challenge is to create a vacuum cleaner that balances lightness, compactness, and structural strength while minimizing manufacturing costs and complexity, as existing designs often compromise between these factors due to the number of separate casing parts.
Innovation Solution
The vacuum cleaner features a main casing composed of interconnected branches that simplify molding and reduce the number of parts, with a grip handle formed by the second and primary branches of the casing parts, providing structural strength and ergonomic design while reducing weight and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the main housing is formed by a large number of separate parts, then the assembly is more flexible and easier to manufacture individually, but the assembly process becomes complex and manufacturing costs significantly increase
Solution Approach 1:
The patent merges multiple separate casing parts into a single integrated main housing structure. The housing is designed as one piece that incorporates all necessary structural elements, mounting points, and internal features, eliminating the need for assembly of multiple separate parts and thereby reducing assembly complexity while maintaining manufacturing feasibility
Solution Approach 2:
The single-piece main housing serves multiple functions simultaneously: it provides structural support, defines internal cavities for component mounting, creates sealing surfaces, and integrates attachment points for accessories. This multi-functional design reduces the number of separate parts needed while maintaining all necessary capabilities
2Strength
If the housing shape and complexity increase to ensure structural resistance, then the vacuum cleaner becomes more reliable, but the general size and weight of the vacuum cleaner increase
Solution Approach 1:
The main housing incorporates curved and rounded surfaces rather than sharp angles and flat planes. These curved surfaces naturally distribute stress more effectively throughout the structure, providing enhanced structural resistance and reliability while maintaining a compact, aerodynamic shape that minimizes material usage and overall size
Solution Approach 2:
The housing is made from a composite material that combines high strength-to-weight ratio properties. This allows the housing to provide the necessary structural resistance and durability while keeping the overall weight low, resolving the contradiction between strength and weight
3Strength
If the housing shape and complexity increase to ensure structural resistance, then the vacuum cleaner becomes more reliable, but the general size of the vacuum cleaner increases
Solution Approach 1:
The curved, organic surfaces of the housing provide structural strength through geometric distribution of forces, allowing the housing to be compact without sacrificing reliability. The curved design efficiently uses space while maintaining structural integrity
Data Source
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AI summary
The vacuum cleaner includes a suction duct; a waste separation device; a main housing (3) in which is housed a suction device comprising a motor-fan; and a gripping handle, the main housing (3) having a first part of the housing (28) comprising a first branch (29) in which is housed the suction duct, a second branch (31) forming a front part of the gripping handle and a third branch (32) partially defining a receiving chamber in which is housed the suction device, and a second part of the housing (34) disposed in a rear part of the vacuum cleaner, the second part of the housing (34) having a primary branch (35) forming a rear part of the gripping handle and a secondary branch (36) partially defining the receiving chamber.