Floating Charging Dock for Water Surface Cleaning Robots

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Solution Overview

Problem

Existing water surface cleaning devices require manual battery replacement or charging, which is inconvenient due to the need to remove the device from the water surface.

Innovation Solution

A water surface cleaning and charging integrated system with a floatable charging base station that adapts to the up-and-down motion of the water surface, allowing wireless charging of the device without removing it from the water.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the water surface cleaning device is taken out of the water for charging or battery replacement, then the energy can be supplemented, but the operation convenience deteriorates

Engineering Contradiction:
Improveenergy supplementationVSAvoidoperation convenience
Core Design Contradiction:
Use of energy by moving objectVSEase of operation

Solution Approach 1:

The charging base station enables the water surface cleaning device to charge itself automatically when it returns to the base station. The device navigates to the base station, docks automatically through magnetic attraction, and receives wireless charging without human intervention, thus maintaining energy supplementation while significantly improving operation convenience

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical process of taking the device out for charging with an automated wireless charging system. The mechanical action of removing and reconnecting the device is substituted by magnetic docking and wireless energy transfer, eliminating the need for manual intervention while ensuring continuous energy supplementation

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

2Device complexity

If the charging base station is fixed on land, then the structure is simple, but the adaptability to water surface motion deteriorates

Engineering Contradiction:
Improvestructure simplicityVSAvoidadaptability to water surface motion
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The charging base station incorporates a floatable seat that can move vertically with water surface waves. This dynamic structure allows the base station to adapt to water surface motion while maintaining a relatively simple overall design. The floatable seat acts as a buffer between the fixed mounting structure and the water surface, absorbing wave motion without requiring complex active control systems

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The floatable seat serves as an intermediary element between the fixed mounting structure on land and the water surface. It provides a transition zone that can accommodate both the simplicity of a fixed structure and the adaptability needed for water surface conditions, allowing the charging base station to remain relatively simple while effectively adapting to wave motion

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables convenient charging of the water surface cleaning device while it remains on the water, reducing the need for frequent manual intervention and enhancing user convenience.

Implementation Method 1

a magnetic attraction structure, and the floatable seat is configured to float up and down as water raises and falls, so that a height of the wireless charging structure is matched with a height of the wireless charging module, and a height of the magnetic attraction structure is matched with a height of the magnetic attraction module

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Implementation Method 2

the water surface cleaning device is provided with a wireless charging module and a magnetic attraction module, the charging base station includes a fixed mount and a floatable seat movably installed on the fixed mount, the floatable seat is provided with a wireless charging structure and a magnetic attraction structure

Methodology Applied
Scientific EffectWireless charging: Electromagnetic Induction

Implementation Method 3

the floatable seat is configured to float up and down as water raises and falls

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentEP4575143A1Integrated system for water surface cleaning and charging
Publication Date: 2025.06.25 YUNDA H&H TECH (TIANJIN) CO LTD
  • EP4575143A1 patent drawingFigure 1
  • EP4575143A1 patent drawingFigure 2
  • EP4575143A1 patent drawingFigure 3

AI summary

A water surface cleaning and charging integrated system is provided. The water surface cleaning and charging integrated system includes a water surface cleaning device and a charging base station. The water surface cleaning device is provided with a wireless charging module and a magnetic attraction module. The charging base station includes a fixed mount and a floatable seat movably installed on the fixed mount. The floatable seat is provided with a wireless charging structure and a magnetic attraction structure. The floatable seat is configured to float up and down as water raises and falls, so that a height of the wireless charging structure is matched with a height of the wireless charging module, and a height of the magnetic attraction structure is matched with a height of the wireless charging module.