Clothing dryer

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Solution Overview

Problem

Existing clothing dryers face challenges in precisely detecting the dryness of laundry due to foreign substances interfering with moisture sensors, leading to inaccurate readings and potential malfunctions.

Innovation Solution

The implementation of a clothing dryer design featuring a sensor partition wall and a filter member with moisture detecting sensor units, which includes a bent fixing part and a terminal connecting part to prevent foreign substances from accumulating between sensors, ensuring accurate dryness detection and enhanced efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple moisture detecting sensor units are provided to detect moisture of laundry, then the measurement precision of dryness detection is improved, but foreign substances may get stuck between the sensors causing inaccurate readings

Engineering Contradiction:
Improvedryness detection precisionVSAvoidforeign substance interference
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a sensor partition wall that divides the space between multiple moisture detecting sensor units. This segmentation prevents foreign substances like wet dust from accumulating between sensors while maintaining the multiple-sensor configuration for accurate moisture detection across different areas of the laundry.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor partition wall acts as an intermediary structure between the moisture detecting sensor units. It allows moisture vapor to pass through for detection while blocking foreign substances from reaching the sensor surfaces, thus mediating between the need for accurate detection and the need to prevent contamination.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If sensor partition walls are introduced to prevent foreign substances from sticking between sensors, then reliability of sensor operation is improved, but device complexity increases

Engineering Contradiction:
Improvesensor operation reliabilityVSAvoidsensor structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sensor partition wall is designed as a thin, simple structure that divides the sensor space without adding significant complexity. It effectively prevents foreign substance accumulation while maintaining ease of integration into the existing sensor assembly, balancing reliability improvement with minimal structural complexity increase.

Inventive Principle:
Principle #30Flexible shells and thin films

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

This design enhances the accuracy of dryness detection, prevents malfunctions, and improves the overall efficiency of the drying process by ensuring precise moisture sensing and effective air filtration.

Implementation Method 1

The plurality of moisture detecting sensor units may be provided at an inside the drying tub to detect moisture of laundry

Methodology Applied
Scientific EffectMoisture detection:

Implementation Method 2

a filter member provided in between the drying tub and a duct communicating with the drying tub and through which air passed through an inside the drying tub is discharged, to filter a foreign substance

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 3

The wet laundry at an inside the drying tub has moisture removed by the heated air that is dry, and the laundry is dried by the repeated circulation of the heated air

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentUS9816223B2Clothing dryer
Publication Date: 2017.11.14 SAMSUNG ELECTRONICS CO LTD
  • US9816223B2 patent drawing
  • US9816223B2 patent drawing
  • US9816223B2 patent drawing

AI summary

A clothing dryer includes a drying tub configured to hold laundry and having an opening to load laundry; a filter housing disposed at a front of the opening and configured to accommodate a filter; and a first sensor and a second sensor disposed at the filter housing such that the first sensor is electrically connected to the second sensor through wet laundry contacting the first sensor and the second sensor simultaneously. Each of the first sensor and the second sensor includes a sensing part exposed to an inside of the drying tub and a bent part inserted to the filter housing. The filter housing includes a partition wall to separate at least a portion of the first sensor and the second sensor.