Gas Sensor Integration Using Shared Audio Holes for Water Resistance

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The challenge is to integrate a gas sensor into electronic devices without compromising their water-resistant characteristics, as conventional methods require additional holes that detract from the device's sealing.

Innovation Solution

The solution involves sharing a hole with other components like microphones or receivers, allowing the gas sensor to communicate with the external environment while maintaining the device's water resistance by using the existing holes for sound output or input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a gas sensor is integrated into the electronic device, then air quality measurement capability is improved, but the device requires additional holes which compromise water-resistant characteristics

Engineering Contradiction:
Improveair quality measurement capabilityVSAvoidwater-resistant characteristics
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The gas sensor is integrated to share a common hole with existing components (microphone or receiver), thereby combining multiple functions through a single opening. This merging approach allows the gas sensor to access external air for quality measurement without requiring a separate dedicated hole, thus preserving the device's water-resistant sealing.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The common hole is designed to serve multiple purposes: it functions as an acoustic passage for the microphone or receiver while simultaneously serving as an air inlet for the gas sensor. This multi-functional design eliminates the need for additional openings, maintaining the integrity of the water-resistant structure while enabling air quality monitoring.

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

2Adaptability or versatility

If additional holes are added to the housing for the gas sensor, then gas sensing functionality is improved, but the device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvegas sensing functionalityVSAvoidhousing structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The gas sensor shares the same hole with the microphone or receiver, merging the air passage requirements of both components into a single opening. This reduces the number of holes needed in the housing, simplifying the overall structure and reducing manufacturing complexity compared to providing separate dedicated holes for each component.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If a common hole is shared between audio components and gas sensor, then water resistance is improved, but the gas sensor may be affected by sound waves

Engineering Contradiction:
Improvewater-resistant characteristicsVSAvoidsound wave interference on gas sensor
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The internal structure around the common hole is designed with differentiated local properties: the acoustic passage is optimized for sound transmission to the microphone/receiver, while the air inlet passage for the gas sensor is positioned or configured to minimize exposure to sound waves. This local quality differentiation allows both components to share the hole while reducing harmful sound wave interference on the gas sensor.

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

This approach enables the electronic device to perform air quality analysis and user health monitoring without the need for additional holes, enhancing water resistance and functionality.

Implementation Method 1

a gas sensor capable of measuring the air quality

Methodology Applied
Scientific EffectGas sensing:

Implementation Method 2

recognize a user gesture of starting a proximity call by using the proximity sensor

Methodology Applied
Scientific EffectProximity sensing:

Data Source

PatentUS10908136B2Electronic device having structure with gas sensor
Publication Date: 2021.02.02 SAMSUNG ELECTRONICS CO LTD
  • US10908136B2 patent drawing
  • US10908136B2 patent drawing
  • US10908136B2 patent drawing

AI summary

An electronic device includes a housing having a hole formed therein, an audio device inside the housing and communicating with an outside of the electronic device through the hole, a gas sensor inside the housing and communicating with the outside through the hole, a proximity sensor inside the housing, a wireless communication module inside the housing, and a processor inside the housing. The processor is configured to acquire data associated with air outside the electronic device by using the gas sensor, to recognize a user gesture of starting a proximity call by using the proximity sensor, and to calculate air quality of the outside air based on at least one of data acquired by the gas sensor before the proximity call starting gesture is recognized and data acquired by the gas sensor after a gesture of ending the proximity call is recognized. Other various embodiments are possible.