Electronic Apparatus Passage Hole for Detection Range
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Solution Overview
Problem
Existing electronic apparatuses face challenges in accurately detecting user presence, particularly due to variations in user position.
Innovation Solution
An electronic apparatus is designed with a base, an object detecting section, and a chassis, featuring a substrate with a detecting element and a passage hole that allows waves to pass through, enhancing detection accuracy by optimizing the placement and orientation of the detecting element and passage hole for improved user detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the detecting element is mounted on the substrate with the first principal surface facing the base, then the detection accuracy is improved, but the horizontal detection range is limited
Solution Approach 1:
The passage hole is designed to extend in the thickness direction (vertical dimension) of the base rather than only in the horizontal plane. This vertical extension allows the detecting element to receive waves from a broader horizontal area while maintaining its vertical mounting orientation, thus expanding the horizontal detection range without compromising detection accuracy.
2Adaptability or versatility
If the passage hole is made longer in the horizontal direction, then the horizontal detection range is enlarged, but the compact size is compromised
Solution Approach 1:
Instead of extending the passage hole horizontally to enlarge the detection range, the invention extends it vertically in the thickness direction of the base. This dimensional shift allows the detection range to be enlarged without increasing the horizontal footprint, thereby maintaining the compact size of the electronic apparatus.
Solution Approach 2:
The invention changes the geometric parameters of the passage hole by extending its length in the thickness direction while controlling its horizontal dimensions. This parameter adjustment enables the detection range to be enlarged without proportionally increasing the overall volume or horizontal size of the apparatus.
3Adaptability or versatility
If the detecting element is positioned to detect waves from various positions, then the adaptability is improved, but the false detection increases
Solution Approach 1:
The passage hole is strategically positioned and oriented to allow waves from specific user positions (in front of or behind the electronic apparatus) to reach the detecting element, while blocking or excluding waves from other directions. This selective geometric configuration enables the system to detect users from multiple valid positions while maintaining reliability by excluding irrelevant sources.
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
The solution enables accurate detection of user presence across various positions, reducing false detection and improving performance by enlarging the horizontal detection range while maintaining a compact size and efficient connection.
Implementation Method 1
a detecting element that is provided on a first principal surface of the substrate and is configured to detect a wave coming from an object and output a detection signal
Implementation Method 2
The base has a long passage hole that allows the wave to pass therethrough toward the detecting element
Data Source
AI summary
An electronic apparatus includes a base, an object detecting section, and a chassis that houses the base and the object detecting section. The object detecting section includes a substrate and a detecting element that is provided on a first principal surface of the substrate and is configured to detect a wave coming from an object and output a detection signal. The object detecting section is mounted on the base with the first principal surface facing the base. The base has a long passage hole that allows the wave to pass therethrough toward the detecting element. A longer direction of the passage hole is along a first direction that is a substantially horizontal direction when the chassis adopts a reference posture.