Vacuum cleaner
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Solution Overview
Problem
Conventional vacuum cleaners face challenges in smoothly rotating and navigating obstacles during travel, particularly due to inadequate design features that allow for efficient angle adjustment and obstacle detection.
Innovation Solution
A vacuum cleaner design featuring rotating wheels for normal and reverse direction support, an inclined base structure with a dust container, and an obstacle detection system, allowing for improved navigation over obstacles and efficient cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cleaner body is designed with a fixed base structure, then the manufacturing is simple, but the rotation smoothness and obstacle navigation capability are poor
Solution Approach 1:
The base structure is designed with a variable inclination angle that can dynamically adjust between a first angle during travel and a second angle during stopping. This dynamic adjustment allows the cleaner body to rotate smoothly during travel while maintaining stability when stopped, resolving the contradiction between rotation smoothness and structural simplicity.
2Adaptability or versatility
If the cleaner body maintains a constant angle with the ground, then the structure is stable, but the obstacle climbing capability is reduced
Solution Approach 1:
The base inclination angle dynamically changes based on the travel state: at a first angle during travel to enable obstacle climbing, and at a second angle during stopping to maintain stability. This dynamic adaptation resolves the contradiction between obstacle climbing capability and body stability.
3Measurement precision
If the detecting part continuously monitors the cleaner body inclination, then the rotation angle detection is accurate, but the energy consumption increases
Solution Approach 1:
The detecting part operates periodically based on travel state changes rather than continuously. It detects inclination at key moments (during travel and stopping transitions), providing sufficient rotation angle detection accuracy while significantly reducing energy consumption compared to continuous monitoring.
Data Source
AI summary
Provided is a vacuum cleaner including a base configured to form a lower surface of a cleaner body; moving wheels provided at both side surfaces of the cleaner body and rotated for travel of the vacuum cleaner and also configured to support the cleaner body to be rotated in normal and reverse directions; and a dust container installed at a front of the moving wheels and configured to collect suctioned dust, wherein the base includes a center portion; a first half portion configured to extend to be inclined upward from a front end of the center portion; and a second half portion configured to extend to be inclined upward from a rear end of the center portion, and a rotating center of the moving wheels is located between the first half portion and the second half portion.