Laundry treating apparatus

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional laundry dryers experience issues with rear panel deformation and vibration due to the load of the driver and drum, leading to misalignment of rotation shafts, noise, and potential damage to the speed reducer, and lack a structured air flow and condensate management system.

Innovation Solution

A laundry treating apparatus with a duct cover and nozzle cover configuration that defines a cleaning water channel, air circulating channel, and condensate management system, including a base with a heat exchanger and pump, to stabilize the driver assembly and evenly distribute water and air flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the driver is fixed to the rear panel of the cabinet, then the drum can be rotated stably, but the rear panel deforms and vibrates under the load, causing misalignment and noise

Engineering Contradiction:
Improvedriver assembly stabilityVSAvoidrear panel strength
Core Design Contradiction:
Stability of the object's compositionVSStrength

Solution Approach 1:

The support structure is divided into multiple reinforcement plates distributed across the rear panel, each providing localized support to the driver assembly. This segmentation allows the load to be distributed across multiple points rather than concentrated on a single area, preventing panel deformation while maintaining driver stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Reinforcement plates are pre-installed on the rear panel before the driver assembly is mounted. This preliminary action ensures that the structural support is already in place to handle the driver's weight and operational loads, preventing deformation from occurring during driver installation or operation.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If the driver is fixed to the rear panel, then the drum rotation is enabled, but vibration and external force cause the rear panel to bend, leading to rotation shaft misalignment and potential damage

Engineering Contradiction:
Improvedrum rotationVSAvoidrotation shaft alignment
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

Reinforcement plates are installed in advance to cushion and absorb the vibrational forces and external loads that occur during drum operation. These plates provide structural buffering that prevents the rear panel from bending under dynamic conditions, thereby maintaining rotation shaft alignment and preventing damage to the driver assembly.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Device complexity

If a thin steel plate is used for the rear panel, then the cabinet structure is simplified, but the panel is easily deformed or vibrated even with small external force

Engineering Contradiction:
Improvecabinet structureVSAvoidrear panel stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

Instead of using a single thick panel or complex bracing structure, the reinforcement is segmented into multiple discrete plates strategically positioned on the rear panel. This approach maintains the overall simplicity of the cabinet structure while providing targeted structural support where needed to prevent deformation and vibration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The reinforcement plates are positioned specifically at locations where the driver assembly exerts load on the rear panel. This local quality approach provides enhanced structural properties only where necessary, rather than uniformly thickening the entire panel, thus maintaining cabinet simplicity while improving local stability.

Inventive Principle:
Principle #3Local quality

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

Stabilizes the driver assembly, prevents noise and misalignment, enhances air and water distribution, and simplifies assembly processes, improving the reliability and efficiency of the dryer.

Implementation Method 1

a heat exchanger including a first heat exchanger disposed inside the air circulating channel to cool the air

Methodology Applied
Scientific EffectCondensation: Condensation

Implementation Method 2

a pump coupled to the water collecting channel to move the water collected in the water collecting channel; a cleaning water channel disposed on a top face of the air circulating channel, and receiving water from the pump

Methodology Applied
Scientific EffectPumping: Pump

Data Source

PatentUS12392081B2Laundry treating apparatus
Publication Date: 2025.08.19 LG ELECTRONICS INC
  • US12392081B2 patent drawing
  • US12392081B2 patent drawing
  • US12392081B2 patent drawing

AI summary

A laundry treating apparatus includes a cabinet, a drum, the base, and a motor. The base is disposed under the drum to provide a space in which air inside the drum circulates. The motor is disposed in rear of the drum and disposed spaced apart from the base, and provides power to rotate the drum. The base includes an air circulating channel, a heat exchanger, a water collector body, a pump, a cleaning water channel, and a nozzle cover. The cleaning water channel is disposed on a top face of the air circulating channel, and receives water from the pump, and discharges the received water to the first heat exchanger. The nozzle cover is coupled to the top face of the circulating channel so as to shield the cleaning water channel.