Vacuum cleaner and method for operating same
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Solution Overview
Problem
Vacuum cleaners face a conflict between reducing energy consumption and maintaining cleaning performance due to increased pressure loss in high-performance cyclone separators, which leads to unnecessary strain on downstream filters and increased blower power requirements.
Innovation Solution
A vacuum cleaner with an adjustable cyclone separator that maintains a constant separation particle size by adjusting the inflow cross-section, reducing pressure loss and blower power through geometric changes in response to varying air flow volumes, allowing efficient operation across different floor surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the cyclone separator is designed for high separation performance with smaller particle size, then dirt separation efficiency is improved, but pressure loss and hydraulic power loss increase
Solution Approach 1:
The cyclone separator incorporates an adjustable geometry mechanism that allows the separation characteristics to be dynamically changed based on operating conditions. The adjusting element modifies the cyclone's internal geometry (such as inlet area or separation chamber dimensions) to optimize the balance between separation performance and pressure loss for different airflow volumes and particle size requirements.
Solution Approach 2:
The invention changes the geometric parameters of the cyclone separator through the adjusting element. By modifying parameters such as the inlet cross-section area, separation chamber volume, or outlet dimensions, the cyclone can adapt its separation performance and pressure loss characteristics to match the required particle size and airflow conditions.
2Manufacturing precision
If the cyclone separator is designed for smaller particle size separation, then cleaning performance is improved, but blower power requirements increase
Solution Approach 1:
The adjustable geometry allows the cyclone separator to dynamically adapt its separation characteristics. When operating conditions change (such as airflow volume or desired particle size), the adjusting element modifies the cyclone's internal geometry to maintain optimal separation performance without requiring excessive blower power, thus resolving the trade-off between fine particle separation and power consumption.
Solution Approach 2:
By changing the geometric parameters of the cyclone separator (inlet area, separation chamber dimensions, etc.) through the adjusting element, the system can optimize the balance between particle size separation and the power required by the blower. This allows the same cyclone to handle different particle size requirements with appropriate power levels.
3Loss of energy
If the cyclone separator is designed for lower flow velocities to reduce energy consumption, then energy efficiency is improved, but separation performance decreases
Solution Approach 1:
The adjustable geometry mechanism allows the cyclone separator to maintain effective separation performance across a range of flow velocities. By modifying the internal geometry (such as inlet area or separation chamber dimensions) through the adjusting element, the cyclone can compensate for lower flow velocities and maintain adequate separation performance while operating at lower, more energy-efficient speeds.
Solution Approach 2:
The invention changes the geometric parameters of the cyclone separator to optimize performance at lower flow velocities. By adjusting parameters such as the inlet cross-section or separation chamber volume, the cyclone can maintain effective separation even when operating at reduced speeds, thus achieving energy efficiency without sacrificing separation performance.
4Manufacturing precision
If the cyclone separator geometry is optimized for high separation performance, then particle size reduction is improved, but installation space requirement increases
Solution Approach 1:
The cyclone separator is designed with segmented or modular components that can be adjusted independently. The adjusting element allows modification of specific geometric features (such as inlet area or separation chamber dimensions) without requiring a complete redesign of the entire cyclone structure, enabling compact designs that maintain high separation performance.
Solution Approach 2:
The adjustable geometry allows the cyclone separator to achieve high separation performance in a compact form. By dynamically adjusting the internal geometry through the adjusting element, the cyclone can maintain effective separation characteristics without requiring a large fixed volume, thus reducing installation space requirements while preserving separation performance.
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 reduces blower power by 30-40% while maintaining performance, decreases installation space and weight, and improves dust absorption, reducing energy consumption and battery requirements in cordless models.
Implementation Method 1
a separation system for cleaning the collected air of dirt, wherein the separation system comprises a cyclone separator
Implementation Method 2
a fan for generating a vacuum to collect dirt by means of an air stream and a separation system for cleaning the collected air of dirt
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a vacuum cleaner (1) for cleaning and maintaining floor surfaces (30) with a blower for generating a negative pressure for picking up dirt by means of an airflow (Q) and a separation system (2) for cleaning the picked-up air from the dirt, wherein the separation system (2) comprises a cyclone separator (3), wherein the cyclone separator (3) has at least one adjusting element (4) that is adjustable between at least two positions (A, B), wherein the adjusting element (4) is designed to keep a separation particle size of the cyclone separator (3) constant during the separation of dirt by adjusting it between the at least two positions (A, B), and a method for operating a vacuum cleaner (1) of this type.