Clothing treatment device

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing clothing treatment apparatuses, such as washing machines, face difficulties in arranging an external power supply for internal lighting due to internal rotation, which poses safety risks and high costs for alternative solutions like wireless charging.

Innovation Solution

A magnet induction power generation module is integrated into the rotary and stationary parts of the washing machine, generating electricity through the relative movement of magnets and coils to power a light emitting lamp without external wiring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If an external power supply is arranged for the light emitting lamp, then the lamp can be powered, but the installation becomes complex and costly due to internal rotation

Engineering Contradiction:
Improvelighting illuminationVSAvoidpower supply arrangement
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The system generates its own power through the magnet induction power generation module, which utilizes the relative rotation between the rotary part and stationary part to produce electricity. This eliminates the need for external power supply arrangements and complex wiring in the rotating environment.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the traditional electrical power transmission system (wires and connectors) with a magnetic field-based power generation system. The magnet induction module converts mechanical rotation directly into electrical energy, substituting complex mechanical wiring with a cleaner electromagnetic field-based solution.

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

2Power

If an electric brush is used for power transmission, then power can be transmitted between moving and stationary parts, but electric leakage risk increases significantly

Engineering Contradiction:
Improvepower transmissionVSAvoidelectric leakage safety
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent eliminates the electric brush mechanical contact system and replaces it with a contactless magnet induction power generation system. The magnetic field transfers energy without physical contact, completely avoiding the electric leakage risks associated with brushes in wet environments.

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

Solution Approach 2:

The magnetic field acts as an intermediary between the rotary part and stationary part, transferring energy without direct electrical contact. This intermediary mechanism (magnetic field) replaces the direct electrical contact of electric brushes, solving the safety issue while maintaining power transmission capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If wireless charging technology is adopted, then power can be supplied without external wiring, but the cost increases due to built-in rechargeable battery requirements

Engineering Contradiction:
Improvepower supply installationVSAvoidbattery system cost
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system generates its own power through the magnet induction power generation module, eliminating the need for external battery systems or wireless charging infrastructure. The relative rotation between components continuously generates electricity, making the system self-sufficient without expensive battery components.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent extracts the power generation function from external sources (batteries, wireless charging systems) and integrates it directly into the existing mechanical rotation of the washing machine. This extraction approach eliminates the need for separate battery systems while utilizing the already-present rotational motion.

Inventive Principle:
Principle #2Taking out (Extraction)

4Device complexity

If power generation assemblies are installed without protection parts, then the structure is simpler, but the assemblies are easily damaged and maintenance cost increases

Engineering Contradiction:
Improvestructure simplicityVSAvoidpower generation assembly durability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The power generation assembly is segmented into distinct functional components (magnet supply module, magnet induction power generation module, light emitting lamp) that can be independently protected and maintained. This segmentation allows for targeted protection strategies for each component while maintaining overall system simplicity.

Inventive Principle:
Principle #1Segmentation

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 internal illumination without external power supply, simplifying installation and maintenance, reducing costs, and ensuring safety by eliminating the need for wires near the rotary part.

Implementation Method 1

the magnet supply module generates a magnetic field, and when the rotary part rotates relative to the stationary part, the magnet induction power generation module and the magnet supply module reciprocate in a path close to or away from each other, thus generating electric energy internally

Methodology Applied
Scientific EffectMagnetic induction: Electromagnetic Induction

Data Source

PatentEP4190959B1Clothing treatment device
Publication Date: 2025.12.31 CHONGQING HAIER WASHING MASCH CO LTD
  • EP4190959B1 patent drawingFigure 1
  • EP4190959B1 patent drawingFigure 2
  • EP4190959B1 patent drawingFigure 3

AI summary

The present invention pertains to the technical field of clothing treatment devices, and specifically provides a clothing treatment device. The present invention aims to resolve the issue in which it is difficult to arrange an external power supply on an existing clothing treatment device. For this purpose, the clothing treatment device of the present invention comprises a rotating portion and a stationary portion. The clothing treatment device further comprises a magnet supply module, a magnet-based induction power generation module, and a lamp. The magnet supply module is fixed on the stationary portion in a position corresponding to the magnet-based induction power generation module. The magnet-based induction power generation module comprises a first housing, a coil, and a magnetizer. The first housing comprises a cylinder and a cylinder cover. The cylinder is fixed on the rotating portion. The coil is fixed on an inner side of the cylinder. The magnetizer is fixed on an inner side of the coil, and is arranged corresponding to the magnet supply module. The cylinder cover seals the coil and the magnetizer in the cylinder. The lamp is electrically connected to the coil, and is fixed on the first housing. The magnet supply module generates a magnetic field. When the rotating portion rotates relative to the stationary portion, the interior of the magnet-based induction power generation module generates electricity, and the same powers the lamp.