Fluid-Driven Brush Roller Cleaning Head for Variable-Width Solar Modules

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Solution Overview

Problem

Existing surface cleaning apparatuses for solar collectors are inefficient and costly, particularly when dealing with modules of varying widths, and require excessive water consumption without ensuring effective cleaning.

Innovation Solution

A fluid-driven cleaning apparatus with integrated brush rollers, where the fluid drive converts pressure energy into rotational motion, eliminating the need for heavy electric motors and allowing for modular brush arrangements to adapt to different widths, and incorporating bristle configurations to prevent streaks on inclined surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electric motors are used to drive the brush arrangement, then the cleaning apparatus can effectively clean surfaces, but the apparatus becomes heavy and expensive

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidapparatus weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent replaces the electric motor-driven mechanical system with a fluid-driven system. The brush arrangement is driven by fluid pressure from a high-pressure pump through a fluid connection, eliminating the need for heavy electric motors and their power transmission components while maintaining effective brush rotation for cleaning

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention uses hydraulic principles by introducing a fluid drive system where high-pressure fluid (water or other cleaning fluid) is directed through conduits to the brush arrangement. The fluid pressure directly drives the brushes to rotate, converting hydraulic energy into mechanical cleaning action without requiring electric motors

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Device complexity

If the cleaning apparatus is designed for fixed width, then the structure is simple, but it cannot adapt to solar collectors with different module widths

Engineering Contradiction:
Improvestructural simplicityVSAvoidadaptability to different widths
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The brush arrangement is divided into multiple independently adjustable brush modules that can be segmented or reconfigured. Each brush unit can be independently positioned or removed, allowing the overall brush width to be adjusted to match different solar collector module widths while maintaining a relatively simple base structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cleaning apparatus incorporates dynamic adjustability where the brush arrangement can be reconfigured during operation or setup. The brush modules can be moved, added, or removed to dynamically adapt the working width to match various solar collector configurations, transforming a static structure into a flexible system

Inventive Principle:
Principle #15Dynamics

3Reliability

If water is used to assist cleaning, then the cleaning effect is improved, but water consumption increases

Engineering Contradiction:
Improvecleaning effectVSAvoidwater consumption
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The system utilizes high-pressure hydraulic fluid not only for cleaning but also to drive the brush mechanism. The same pressurized fluid that provides cleaning action also powers the brush rotation, eliminating the need for separate water supplies for both cleaning and propulsion, thereby reducing overall water consumption

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The fluid system serves multiple functions simultaneously: it provides the cleaning medium, drives the brush arrangement, and potentially assists in waste removal. This multi-functionality reduces the total amount of water needed compared to systems where water is used only for cleaning while separate power sources drive the brushes

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 manufacturing and operational costs, improves handling efficiency, and minimizes water consumption while maintaining effective cleaning performance across varying module widths and surface inclinations.

Implementation Method 1

a fluid drive for the brush arrangement which is at least partly integrated into the base part and which is designed to convert the flow energy of a fluid supplied to the base part under pressure into a cleaning movement of the brush arrangement

Methodology Applied
Scientific EffectFluid pressure energy conversion: Hydraulic Press

Data Source

PatentUS9377219B2Cleaning apparatus
Publication Date: 2016.06.28 CLEANTECS GMBH
  • US9377219B2 patent drawing
  • US9377219B2 patent drawing
  • US9377219B2 patent drawing

AI summary

The invention relates to an apparatus for cleaning surfaces, having a cleaning head which includes at least one base part and at least one brush arrangement, in particular a cylindrical brush roller, attached to the base part; and a fluid drive for the brush arrangement which is at least partly integrated into the base part and which is designed to convert the flow energy of a fluid supplied to the base part under pressure into a cleaning movement of the brush arrangement.